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Finding the Fourth Proportional to 272,418, 408,629.03 and 94,924.73

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Solution

The fourth proportional to 272,418, 408,629.03 and 94,924.73 is: 142,387.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,418 : 408,629.03 = 94,924.73 : x
  2. Step 2: Convert to fraction form
    272,418/408,629.03 = 94,924.73/x
  3. Step 3: Cross multiply
    272,418x = 408,629.03 × 94,924.73
  4. Step 4: Simplify right side
    272,418x = 38,788,997,825.14
  5. Step 5: Solve for x
    x = 38,788,997,825.14/272,418
  6. Step 6: Final answer
    x = 142,387.79

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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.