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Finding the Fourth Proportional to 266,563.54, 399,865.92 and 89,071.17

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Solution

The fourth proportional to 266,563.54, 399,865.92 and 89,071.17 is: 133,613.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,563.54 : 399,865.92 = 89,071.17 : x
  2. Step 2: Convert to fraction form
    266,563.54/399,865.92 = 89,071.17/x
  3. Step 3: Cross multiply
    266,563.54x = 399,865.92 × 89,071.17
  4. Step 4: Simplify right side
    266,563.54x = 35,616,525,337.53
  5. Step 5: Solve for x
    x = 35,616,525,337.53/266,563.54
  6. Step 6: Final answer
    x = 133,613.64

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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.