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Finding the Fourth Proportional to 275,326.56, 412,902.28 and 187,146.72

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Solution

The fourth proportional to 275,326.56, 412,902.28 and 187,146.72 is: 280,660.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,326.56 : 412,902.28 = 187,146.72 : x
  2. Step 2: Convert to fraction form
    275,326.56/412,902.28 = 187,146.72/x
  3. Step 3: Cross multiply
    275,326.56x = 412,902.28 × 187,146.72
  4. Step 4: Simplify right side
    275,326.56x = 77,273,307,382.52
  5. Step 5: Solve for x
    x = 77,273,307,382.52/275,326.56
  6. Step 6: Final answer
    x = 280,660.56

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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.