Home / 398,823.14-598,105.28-132,512.16

Finding the Fourth Proportional to 398,823.14, 598,105.28 and 132,512.16

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Solution

The fourth proportional to 398,823.14, 598,105.28 and 132,512.16 is: 198,725.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,823.14 : 598,105.28 = 132,512.16 : x
  2. Step 2: Convert to fraction form
    398,823.14/598,105.28 = 132,512.16/x
  3. Step 3: Cross multiply
    398,823.14x = 598,105.28 × 132,512.16
  4. Step 4: Simplify right side
    398,823.14x = 79,256,222,560.20
  5. Step 5: Solve for x
    x = 79,256,222,560.20/398,823.14
  6. Step 6: Final answer
    x = 198,725.24

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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.