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Finding the Fourth Proportional to 266,577.77, 399,866.65 and 89,084.78

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Solution

The fourth proportional to 266,577.77, 399,866.65 and 89,084.78 is: 133,627.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,577.77 : 399,866.65 = 89,084.78 : x
  2. Step 2: Convert to fraction form
    266,577.77/399,866.65 = 89,084.78/x
  3. Step 3: Cross multiply
    266,577.77x = 399,866.65 × 89,084.78
  4. Step 4: Simplify right side
    266,577.77x = 35,622,032,448.42
  5. Step 5: Solve for x
    x = 35,622,032,448.42/266,577.77
  6. Step 6: Final answer
    x = 133,627.17

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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.