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Finding the Fourth Proportional to 372,355.92, 513,853.32 and 202,591.20

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Solution

The fourth proportional to 372,355.92, 513,853.32 and 202,591.20 is: 279,577.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,355.92 : 513,853.32 = 202,591.20 : x
  2. Step 2: Convert to fraction form
    372,355.92/513,853.32 = 202,591.20/x
  3. Step 3: Cross multiply
    372,355.92x = 513,853.32 × 202,591.20
  4. Step 4: Simplify right side
    372,355.92x = 104,102,160,722.78
  5. Step 5: Solve for x
    x = 104,102,160,722.78/372,355.92
  6. Step 6: Final answer
    x = 279,577.03

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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.