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Finding the Fourth Proportional to 192,549.60, 288,921.60 and 87,301.44

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Solution

The fourth proportional to 192,549.60, 288,921.60 and 87,301.44 is: 130,996.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,549.60 : 288,921.60 = 87,301.44 : x
  2. Step 2: Convert to fraction form
    192,549.60/288,921.60 = 87,301.44/x
  3. Step 3: Cross multiply
    192,549.60x = 288,921.60 × 87,301.44
  4. Step 4: Simplify right side
    192,549.60x = 25,223,271,727.10
  5. Step 5: Solve for x
    x = 25,223,271,727.10/192,549.60
  6. Step 6: Final answer
    x = 130,996.23

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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.