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Finding the Fourth Proportional to 143,563.29, 215,344.94 and 38,379.52

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Solution

The fourth proportional to 143,563.29, 215,344.94 and 38,379.52 is: 57,569.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,563.29 : 215,344.94 = 38,379.52 : x
  2. Step 2: Convert to fraction form
    143,563.29/215,344.94 = 38,379.52/x
  3. Step 3: Cross multiply
    143,563.29x = 215,344.94 × 38,379.52
  4. Step 4: Simplify right side
    143,563.29x = 8,264,835,508.91
  5. Step 5: Solve for x
    x = 8,264,835,508.91/143,563.29
  6. Step 6: Final answer
    x = 57,569.28

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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.