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Finding the Fourth Proportional to 247,687.72, 341,896.26 and 147,085

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Solution

The fourth proportional to 247,687.72, 341,896.26 and 147,085 is: 203,029.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,687.72 : 341,896.26 = 147,085 : x
  2. Step 2: Convert to fraction form
    247,687.72/341,896.26 = 147,085/x
  3. Step 3: Cross multiply
    247,687.72x = 341,896.26 × 147,085
  4. Step 4: Simplify right side
    247,687.72x = 50,287,811,402.10
  5. Step 5: Solve for x
    x = 50,287,811,402.10/247,687.72
  6. Step 6: Final answer
    x = 203,029.09

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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.