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Finding the Fourth Proportional to 266,500.43, 399,586.62 and 88,959.77

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Solution

The fourth proportional to 266,500.43, 399,586.62 and 88,959.77 is: 133,384.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,500.43 : 399,586.62 = 88,959.77 : x
  2. Step 2: Convert to fraction form
    266,500.43/399,586.62 = 88,959.77/x
  3. Step 3: Cross multiply
    266,500.43x = 399,586.62 × 88,959.77
  4. Step 4: Simplify right side
    266,500.43x = 35,547,135,142.84
  5. Step 5: Solve for x
    x = 35,547,135,142.84/266,500.43
  6. Step 6: Final answer
    x = 133,384.91

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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.