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Finding the Fourth Proportional to 371,006.46, 511,601.65 and 220,074.30

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Solution

The fourth proportional to 371,006.46, 511,601.65 and 220,074.30 is: 303,472.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,006.46 : 511,601.65 = 220,074.30 : x
  2. Step 2: Convert to fraction form
    371,006.46/511,601.65 = 220,074.30/x
  3. Step 3: Cross multiply
    371,006.46x = 511,601.65 × 220,074.30
  4. Step 4: Simplify right side
    371,006.46x = 112,590,375,002.60
  5. Step 5: Solve for x
    x = 112,590,375,002.60/371,006.46
  6. Step 6: Final answer
    x = 303,472.82

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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.