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Finding the Fourth Proportional to 266,330.24, 399,496.88 and 88,836.72

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Solution

The fourth proportional to 266,330.24, 399,496.88 and 88,836.72 is: 133,255.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,330.24 : 399,496.88 = 88,836.72 : x
  2. Step 2: Convert to fraction form
    266,330.24/399,496.88 = 88,836.72/x
  3. Step 3: Cross multiply
    266,330.24x = 399,496.88 × 88,836.72
  4. Step 4: Simplify right side
    266,330.24x = 35,489,992,469.43
  5. Step 5: Solve for x
    x = 35,489,992,469.43/266,330.24
  6. Step 6: Final answer
    x = 133,255.59

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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.