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Finding the Fourth Proportional to 192,552.89, 288,654.37 and 87,314.45

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Solution

The fourth proportional to 192,552.89, 288,654.37 and 87,314.45 is: 130,892.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,552.89 : 288,654.37 = 87,314.45 : x
  2. Step 2: Convert to fraction form
    192,552.89/288,654.37 = 87,314.45/x
  3. Step 3: Cross multiply
    192,552.89x = 288,654.37 × 87,314.45
  4. Step 4: Simplify right side
    192,552.89x = 25,203,695,895.09
  5. Step 5: Solve for x
    x = 25,203,695,895.09/192,552.89
  6. Step 6: Final answer
    x = 130,892.33

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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.