Home / 372,343.38-513,836.10-202,578.72

Finding the Fourth Proportional to 372,343.38, 513,836.10 and 202,578.72

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Solution

The fourth proportional to 372,343.38, 513,836.10 and 202,578.72 is: 279,559.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,343.38 : 513,836.10 = 202,578.72 : x
  2. Step 2: Convert to fraction form
    372,343.38/513,836.10 = 202,578.72/x
  3. Step 3: Cross multiply
    372,343.38x = 513,836.10 × 202,578.72
  4. Step 4: Simplify right side
    372,343.38x = 104,092,259,427.79
  5. Step 5: Solve for x
    x = 104,092,259,427.79/372,343.38
  6. Step 6: Final answer
    x = 279,559.85

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1.5x scale

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.