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Finding the Fourth Proportional to 404,773.44, 607,142.16 and 138,557.76

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Solution

The fourth proportional to 404,773.44, 607,142.16 and 138,557.76 is: 207,830.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,773.44 : 607,142.16 = 138,557.76 : x
  2. Step 2: Convert to fraction form
    404,773.44/607,142.16 = 138,557.76/x
  3. Step 3: Cross multiply
    404,773.44x = 607,142.16 × 138,557.76
  4. Step 4: Simplify right side
    404,773.44x = 84,124,257,691.16
  5. Step 5: Solve for x
    x = 84,124,257,691.16/404,773.44
  6. Step 6: Final answer
    x = 207,830.48

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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.