Home / 511.99-768-204.01

Finding the Fourth Proportional to 511.99, 768 and 204.01

Calculator

Solution

The fourth proportional to 511.99, 768 and 204.01 is: 306.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    511.99 : 768 = 204.01 : x
  2. Step 2: Convert to fraction form
    511.99/768 = 204.01/x
  3. Step 3: Cross multiply
    511.99x = 768 × 204.01
  4. Step 4: Simplify right side
    511.99x = 156,679.68
  5. Step 5: Solve for x
    x = 156,679.68/511.99
  6. Step 6: Final answer
    x = 306.02

Related Problems

Find fourth proportional to 256.00, 384 and 102.01
Half scale
Find fourth proportional to 1,023.98, 1,536 and 408.02
Double scale
Find fourth proportional to 512.99, 769.50 and 205.01
Similar ratio
Find fourth proportional to 767.99, 1,152 and 306.02
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.