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Finding the Fourth Proportional to 349,329.60, 523,648.80 and 171,691.20

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Solution

The fourth proportional to 349,329.60, 523,648.80 and 171,691.20 is: 257,366.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,329.60 : 523,648.80 = 171,691.20 : x
  2. Step 2: Convert to fraction form
    349,329.60/523,648.80 = 171,691.20/x
  3. Step 3: Cross multiply
    349,329.60x = 523,648.80 × 171,691.20
  4. Step 4: Simplify right side
    349,329.60x = 89,905,890,850.56
  5. Step 5: Solve for x
    x = 89,905,890,850.56/349,329.60
  6. Step 6: Final answer
    x = 257,366.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.