Home / 428,048.16-642,114.68-158,247

Finding the Fourth Proportional to 428,048.16, 642,114.68 and 158,247

Calculator

Solution

The fourth proportional to 428,048.16, 642,114.68 and 158,247 is: 237,386.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,048.16 : 642,114.68 = 158,247 : x
  2. Step 2: Convert to fraction form
    428,048.16/642,114.68 = 158,247/x
  3. Step 3: Cross multiply
    428,048.16x = 642,114.68 × 158,247
  4. Step 4: Simplify right side
    428,048.16x = 101,612,721,765.96
  5. Step 5: Solve for x
    x = 101,612,721,765.96/428,048.16
  6. Step 6: Final answer
    x = 237,386.19

Related Problems

Find fourth proportional to 214,024.08, 321,057.34 and 79,123.50
Half scale
Find fourth proportional to 856,096.32, 1,284,229.36 and 316,494
Double scale
Find fourth proportional to 428,049.16, 642,116.18 and 158,248
Similar ratio
Find fourth proportional to 642,072.24, 963,172.02 and 237,370.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.