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Finding the Fourth Proportional to 266,994.78, 400,492.17 and 89,451.42

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Solution

The fourth proportional to 266,994.78, 400,492.17 and 89,451.42 is: 134,177.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,994.78 : 400,492.17 = 89,451.42 : x
  2. Step 2: Convert to fraction form
    266,994.78/400,492.17 = 89,451.42/x
  3. Step 3: Cross multiply
    266,994.78x = 400,492.17 × 89,451.42
  4. Step 4: Simplify right side
    266,994.78x = 35,824,593,305.38
  5. Step 5: Solve for x
    x = 35,824,593,305.38/266,994.78
  6. Step 6: Final answer
    x = 134,177.13

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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.