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Finding the Fourth Proportional to 266,187.65, 399,345.03 and 88,696.19

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Solution

The fourth proportional to 266,187.65, 399,345.03 and 88,696.19 is: 133,065.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,187.65 : 399,345.03 = 88,696.19 : x
  2. Step 2: Convert to fraction form
    266,187.65/399,345.03 = 88,696.19/x
  3. Step 3: Cross multiply
    266,187.65x = 399,345.03 × 88,696.19
  4. Step 4: Simplify right side
    266,187.65x = 35,420,383,654.80
  5. Step 5: Solve for x
    x = 35,420,383,654.80/266,187.65
  6. Step 6: Final answer
    x = 133,065.47

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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.