Home / 481,230-721,845-148,806

Finding the Fourth Proportional to 481,230, 721,845 and 148,806

Calculator

Solution

The fourth proportional to 481,230, 721,845 and 148,806 is: 223,209

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,230 : 721,845 = 148,806 : x
  2. Step 2: Convert to fraction form
    481,230/721,845 = 148,806/x
  3. Step 3: Cross multiply
    481,230x = 721,845 × 148,806
  4. Step 4: Simplify right side
    481,230x = 107,414,867,070
  5. Step 5: Solve for x
    x = 107,414,867,070/481,230
  6. Step 6: Final answer
    x = 223,209

Related Problems

Find fourth proportional to 240,615, 360,922.50 and 74,403
Half scale
Find fourth proportional to 962,460, 1,443,690 and 297,612
Double scale
Find fourth proportional to 481,231, 721,846.50 and 148,807
Similar ratio
Find fourth proportional to 721,845, 1,082,767.50 and 223,209
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.