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Finding the Fourth Proportional to 143,592.88, 215,372.92 and 38,419.96

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Solution

The fourth proportional to 143,592.88, 215,372.92 and 38,419.96 is: 57,625.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,592.88 : 215,372.92 = 38,419.96 : x
  2. Step 2: Convert to fraction form
    143,592.88/215,372.92 = 38,419.96/x
  3. Step 3: Cross multiply
    143,592.88x = 215,372.92 × 38,419.96
  4. Step 4: Simplify right side
    143,592.88x = 8,274,618,971.48
  5. Step 5: Solve for x
    x = 8,274,618,971.48/143,592.88
  6. Step 6: Final answer
    x = 57,625.55

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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.