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Finding the Fourth Proportional to 354,179.79, 488,753.78 and 193,031.37

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Solution

The fourth proportional to 354,179.79, 488,753.78 and 193,031.37 is: 266,375.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,179.79 : 488,753.78 = 193,031.37 : x
  2. Step 2: Convert to fraction form
    354,179.79/488,753.78 = 193,031.37/x
  3. Step 3: Cross multiply
    354,179.79x = 488,753.78 × 193,031.37
  4. Step 4: Simplify right side
    354,179.79x = 94,344,810,780.92
  5. Step 5: Solve for x
    x = 94,344,810,780.92/354,179.79
  6. Step 6: Final answer
    x = 266,375.48

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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.