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Finding the Fourth Proportional to 266,249.76, 399,272.88 and 88,722.72

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Solution

The fourth proportional to 266,249.76, 399,272.88 and 88,722.72 is: 133,050.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,249.76 : 399,272.88 = 88,722.72 : x
  2. Step 2: Convert to fraction form
    266,249.76/399,272.88 = 88,722.72/x
  3. Step 3: Cross multiply
    266,249.76x = 399,272.88 × 88,722.72
  4. Step 4: Simplify right side
    266,249.76x = 35,424,575,935.83
  5. Step 5: Solve for x
    x = 35,424,575,935.83/266,249.76
  6. Step 6: Final answer
    x = 133,050.17

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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.