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Finding the Fourth Proportional to 352,433.28, 485,687.52 and 345,956.16

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Solution

The fourth proportional to 352,433.28, 485,687.52 and 345,956.16 is: 476,761.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,433.28 : 485,687.52 = 345,956.16 : x
  2. Step 2: Convert to fraction form
    352,433.28/485,687.52 = 345,956.16/x
  3. Step 3: Cross multiply
    352,433.28x = 485,687.52 × 345,956.16
  4. Step 4: Simplify right side
    352,433.28x = 168,026,589,379.12
  5. Step 5: Solve for x
    x = 168,026,589,379.12/352,433.28
  6. Step 6: Final answer
    x = 476,761.42

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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.