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Finding the Fourth Proportional to 376,179.90, 564,770.70 and 218,521.50

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Solution

The fourth proportional to 376,179.90, 564,770.70 and 218,521.50 is: 328,073.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,179.90 : 564,770.70 = 218,521.50 : x
  2. Step 2: Convert to fraction form
    376,179.90/564,770.70 = 218,521.50/x
  3. Step 3: Cross multiply
    376,179.90x = 564,770.70 × 218,521.50
  4. Step 4: Simplify right side
    376,179.90x = 123,414,540,520.05
  5. Step 5: Solve for x
    x = 123,414,540,520.05/376,179.90
  6. Step 6: Final answer
    x = 328,073.19

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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.