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Finding the Fourth Proportional to 404,417.44, 606,697.47 and 138,115.54

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Solution

The fourth proportional to 404,417.44, 606,697.47 and 138,115.54 is: 207,197.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,417.44 : 606,697.47 = 138,115.54 : x
  2. Step 2: Convert to fraction form
    404,417.44/606,697.47 = 138,115.54/x
  3. Step 3: Cross multiply
    404,417.44x = 606,697.47 × 138,115.54
  4. Step 4: Simplify right side
    404,417.44x = 83,794,348,685.68
  5. Step 5: Solve for x
    x = 83,794,348,685.68/404,417.44
  6. Step 6: Final answer
    x = 207,197.66

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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.