Home / 398,823.12-598,105.28-132,512.14

Finding the Fourth Proportional to 398,823.12, 598,105.28 and 132,512.14

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Solution

The fourth proportional to 398,823.12, 598,105.28 and 132,512.14 is: 198,725.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,823.12 : 598,105.28 = 132,512.14 : x
  2. Step 2: Convert to fraction form
    398,823.12/598,105.28 = 132,512.14/x
  3. Step 3: Cross multiply
    398,823.12x = 598,105.28 × 132,512.14
  4. Step 4: Simplify right side
    398,823.12x = 79,256,210,598.10
  5. Step 5: Solve for x
    x = 79,256,210,598.10/398,823.12
  6. Step 6: Final answer
    x = 198,725.22

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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.