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Finding the Fourth Proportional to 352,892.34, 487,049.49 and 257,714.10

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Solution

The fourth proportional to 352,892.34, 487,049.49 and 257,714.10 is: 355,687.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,892.34 : 487,049.49 = 257,714.10 : x
  2. Step 2: Convert to fraction form
    352,892.34/487,049.49 = 257,714.10/x
  3. Step 3: Cross multiply
    352,892.34x = 487,049.49 × 257,714.10
  4. Step 4: Simplify right side
    352,892.34x = 125,519,520,970.81
  5. Step 5: Solve for x
    x = 125,519,520,970.81/352,892.34
  6. Step 6: Final answer
    x = 355,687.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.