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Finding the Fourth Proportional to 366,523.70, 549,785.55 and 129,890.30

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Solution

The fourth proportional to 366,523.70, 549,785.55 and 129,890.30 is: 194,835.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,523.70 : 549,785.55 = 129,890.30 : x
  2. Step 2: Convert to fraction form
    366,523.70/549,785.55 = 129,890.30/x
  3. Step 3: Cross multiply
    366,523.70x = 549,785.55 × 129,890.30
  4. Step 4: Simplify right side
    366,523.70x = 71,411,810,025.17
  5. Step 5: Solve for x
    x = 71,411,810,025.17/366,523.70
  6. Step 6: Final answer
    x = 194,835.45

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Similar ratio
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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.