Home / 345,229.43-517,831.88-105,333.64

Finding the Fourth Proportional to 345,229.43, 517,831.88 and 105,333.64

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Solution

The fourth proportional to 345,229.43, 517,831.88 and 105,333.64 is: 157,996.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,229.43 : 517,831.88 = 105,333.64 : x
  2. Step 2: Convert to fraction form
    345,229.43/517,831.88 = 105,333.64/x
  3. Step 3: Cross multiply
    345,229.43x = 517,831.88 × 105,333.64
  4. Step 4: Simplify right side
    345,229.43x = 54,545,115,007.20
  5. Step 5: Solve for x
    x = 54,545,115,007.20/345,229.43
  6. Step 6: Final answer
    x = 157,996.71

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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.