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Finding the Fourth Proportional to 266,328.76, 399,494.64 and 88,835.28

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Solution

The fourth proportional to 266,328.76, 399,494.64 and 88,835.28 is: 133,253.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,328.76 : 399,494.64 = 88,835.28 : x
  2. Step 2: Convert to fraction form
    266,328.76/399,494.64 = 88,835.28/x
  3. Step 3: Cross multiply
    266,328.76x = 399,494.64 × 88,835.28
  4. Step 4: Simplify right side
    266,328.76x = 35,489,218,202.90
  5. Step 5: Solve for x
    x = 35,489,218,202.90/266,328.76
  6. Step 6: Final answer
    x = 133,253.42

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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.