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Finding the Fourth Proportional to 366,234, 549,354.42 and 129,616.80

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Solution

The fourth proportional to 366,234, 549,354.42 and 129,616.80 is: 194,426.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,234 : 549,354.42 = 129,616.80 : x
  2. Step 2: Convert to fraction form
    366,234/549,354.42 = 129,616.80/x
  3. Step 3: Cross multiply
    366,234x = 549,354.42 × 129,616.80
  4. Step 4: Simplify right side
    366,234x = 71,205,561,986.26
  5. Step 5: Solve for x
    x = 71,205,561,986.26/366,234
  6. Step 6: Final answer
    x = 194,426.41

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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.