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Finding the Fourth Proportional to 404,847.38, 606,606.38 and 138,462.56

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Solution

The fourth proportional to 404,847.38, 606,606.38 and 138,462.56 is: 207,466.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,847.38 : 606,606.38 = 138,462.56 : x
  2. Step 2: Convert to fraction form
    404,847.38/606,606.38 = 138,462.56/x
  3. Step 3: Cross multiply
    404,847.38x = 606,606.38 × 138,462.56
  4. Step 4: Simplify right side
    404,847.38x = 83,992,272,287.13
  5. Step 5: Solve for x
    x = 83,992,272,287.13/404,847.38
  6. Step 6: Final answer
    x = 207,466.51

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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.