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Finding the Fourth Proportional to 372,100.76, 513,505.50 and 202,335.92

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Solution

The fourth proportional to 372,100.76, 513,505.50 and 202,335.92 is: 279,227.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,100.76 : 513,505.50 = 202,335.92 : x
  2. Step 2: Convert to fraction form
    372,100.76/513,505.50 = 202,335.92/x
  3. Step 3: Cross multiply
    372,100.76x = 513,505.50 × 202,335.92
  4. Step 4: Simplify right side
    372,100.76x = 103,900,607,767.56
  5. Step 5: Solve for x
    x = 103,900,607,767.56/372,100.76
  6. Step 6: Final answer
    x = 279,227.08

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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.