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Finding the Fourth Proportional to 371,732.45, 513,034.50 and 220,829.45

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Solution

The fourth proportional to 371,732.45, 513,034.50 and 220,829.45 is: 304,770.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,732.45 : 513,034.50 = 220,829.45 : x
  2. Step 2: Convert to fraction form
    371,732.45/513,034.50 = 220,829.45/x
  3. Step 3: Cross multiply
    371,732.45x = 513,034.50 × 220,829.45
  4. Step 4: Simplify right side
    371,732.45x = 113,293,123,900.85
  5. Step 5: Solve for x
    x = 113,293,123,900.85/371,732.45
  6. Step 6: Final answer
    x = 304,770.61

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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.