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Finding the Fourth Proportional to 404,960.22, 607,456.67 and 138,747.65

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Solution

The fourth proportional to 404,960.22, 607,456.67 and 138,747.65 is: 208,127.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,960.22 : 607,456.67 = 138,747.65 : x
  2. Step 2: Convert to fraction form
    404,960.22/607,456.67 = 138,747.65/x
  3. Step 3: Cross multiply
    404,960.22x = 607,456.67 × 138,747.65
  4. Step 4: Simplify right side
    404,960.22x = 84,283,181,708.30
  5. Step 5: Solve for x
    x = 84,283,181,708.30/404,960.22
  6. Step 6: Final answer
    x = 208,127.06

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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.