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Finding the Fourth Proportional to 353,375.76, 487,649.76 and 202,463.04

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Solution

The fourth proportional to 353,375.76, 487,649.76 and 202,463.04 is: 279,393.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,375.76 : 487,649.76 = 202,463.04 : x
  2. Step 2: Convert to fraction form
    353,375.76/487,649.76 = 202,463.04/x
  3. Step 3: Cross multiply
    353,375.76x = 487,649.76 × 202,463.04
  4. Step 4: Simplify right side
    353,375.76x = 98,731,052,864.87
  5. Step 5: Solve for x
    x = 98,731,052,864.87/353,375.76
  6. Step 6: Final answer
    x = 279,393.96

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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.