Home / 398,899.26-598,218.96-132,588.26

Finding the Fourth Proportional to 398,899.26, 598,218.96 and 132,588.26

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Solution

The fourth proportional to 398,899.26, 598,218.96 and 132,588.26 is: 198,839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,899.26 : 598,218.96 = 132,588.26 : x
  2. Step 2: Convert to fraction form
    398,899.26/598,218.96 = 132,588.26/x
  3. Step 3: Cross multiply
    398,899.26x = 598,218.96 × 132,588.26
  4. Step 4: Simplify right side
    398,899.26x = 79,316,811,005.41
  5. Step 5: Solve for x
    x = 79,316,811,005.41/398,899.26
  6. Step 6: Final answer
    x = 198,839.20

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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.