Home / 259,402.64-388,882.20-99,593.36

Finding the Fourth Proportional to 259,402.64, 388,882.20 and 99,593.36

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Solution

The fourth proportional to 259,402.64, 388,882.20 and 99,593.36 is: 149,304.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,402.64 : 388,882.20 = 99,593.36 : x
  2. Step 2: Convert to fraction form
    259,402.64/388,882.20 = 99,593.36/x
  3. Step 3: Cross multiply
    259,402.64x = 388,882.20 × 99,593.36
  4. Step 4: Simplify right side
    259,402.64x = 38,730,084,942.19
  5. Step 5: Solve for x
    x = 38,730,084,942.19/259,402.64
  6. Step 6: Final answer
    x = 149,304.90

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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.