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Finding the Fourth Proportional to 329,920.08, 494,781.39 and 172,062.42

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Solution

The fourth proportional to 329,920.08, 494,781.39 and 172,062.42 is: 258,042.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,920.08 : 494,781.39 = 172,062.42 : x
  2. Step 2: Convert to fraction form
    329,920.08/494,781.39 = 172,062.42/x
  3. Step 3: Cross multiply
    329,920.08x = 494,781.39 × 172,062.42
  4. Step 4: Simplify right side
    329,920.08x = 85,133,283,334.36
  5. Step 5: Solve for x
    x = 85,133,283,334.36/329,920.08
  6. Step 6: Final answer
    x = 258,042.14

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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.