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Finding the Fourth Proportional to 345,000.76, 517,337.28 and 120,333.92

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Solution

The fourth proportional to 345,000.76, 517,337.28 and 120,333.92 is: 180,443.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,000.76 : 517,337.28 = 120,333.92 : x
  2. Step 2: Convert to fraction form
    345,000.76/517,337.28 = 120,333.92/x
  3. Step 3: Cross multiply
    345,000.76x = 517,337.28 × 120,333.92
  4. Step 4: Simplify right side
    345,000.76x = 62,253,222,864.54
  5. Step 5: Solve for x
    x = 62,253,222,864.54/345,000.76
  6. Step 6: Final answer
    x = 180,443.73

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1.5x scale

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.