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Finding the Fourth Proportional to 266,500.81, 399,587.19 and 88,960.15

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Solution

The fourth proportional to 266,500.81, 399,587.19 and 88,960.15 is: 133,385.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,500.81 : 399,587.19 = 88,960.15 : x
  2. Step 2: Convert to fraction form
    266,500.81/399,587.19 = 88,960.15/x
  3. Step 3: Cross multiply
    266,500.81x = 399,587.19 × 88,960.15
  4. Step 4: Simplify right side
    266,500.81x = 35,547,335,027.91
  5. Step 5: Solve for x
    x = 35,547,335,027.91/266,500.81
  6. Step 6: Final answer
    x = 133,385.47

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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.