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Finding the Fourth Proportional to 371,460.53, 557,270.82 and 115,287.77

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Solution

The fourth proportional to 371,460.53, 557,270.82 and 115,287.77 is: 172,956.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,460.53 : 557,270.82 = 115,287.77 : x
  2. Step 2: Convert to fraction form
    371,460.53/557,270.82 = 115,287.77/x
  3. Step 3: Cross multiply
    371,460.53x = 557,270.82 × 115,287.77
  4. Step 4: Simplify right side
    371,460.53x = 64,246,511,517.05
  5. Step 5: Solve for x
    x = 64,246,511,517.05/371,460.53
  6. Step 6: Final answer
    x = 172,956.49

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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.