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Finding the Fourth Proportional to 366,543.90, 549,414.90 and 129,764.70

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Solution

The fourth proportional to 366,543.90, 549,414.90 and 129,764.70 is: 194,505.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,543.90 : 549,414.90 = 129,764.70 : x
  2. Step 2: Convert to fraction form
    366,543.90/549,414.90 = 129,764.70/x
  3. Step 3: Cross multiply
    366,543.90x = 549,414.90 × 129,764.70
  4. Step 4: Simplify right side
    366,543.90x = 71,294,659,674.03
  5. Step 5: Solve for x
    x = 71,294,659,674.03/366,543.90
  6. Step 6: Final answer
    x = 194,505.10

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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.