Home / 372,003.21-513,331.56-206,435.43

Finding the Fourth Proportional to 372,003.21, 513,331.56 and 206,435.43

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Solution

The fourth proportional to 372,003.21, 513,331.56 and 206,435.43 is: 284,862.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,003.21 : 513,331.56 = 206,435.43 : x
  2. Step 2: Convert to fraction form
    372,003.21/513,331.56 = 206,435.43/x
  3. Step 3: Cross multiply
    372,003.21x = 513,331.56 × 206,435.43
  4. Step 4: Simplify right side
    372,003.21x = 105,969,821,321.17
  5. Step 5: Solve for x
    x = 105,969,821,321.17/372,003.21
  6. Step 6: Final answer
    x = 284,862.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.