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Finding the Fourth Proportional to 266,082.48, 399,140.28 and 88,605.36

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Solution

The fourth proportional to 266,082.48, 399,140.28 and 88,605.36 is: 132,913.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,082.48 : 399,140.28 = 88,605.36 : x
  2. Step 2: Convert to fraction form
    266,082.48/399,140.28 = 88,605.36/x
  3. Step 3: Cross multiply
    266,082.48x = 399,140.28 × 88,605.36
  4. Step 4: Simplify right side
    266,082.48x = 35,365,968,199.90
  5. Step 5: Solve for x
    x = 35,365,968,199.90/266,082.48
  6. Step 6: Final answer
    x = 132,913.55

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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.