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Finding the Fourth Proportional to 247,686.72, 341,894.88 and 147,084

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Solution

The fourth proportional to 247,686.72, 341,894.88 and 147,084 is: 203,027.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,686.72 : 341,894.88 = 147,084 : x
  2. Step 2: Convert to fraction form
    247,686.72/341,894.88 = 147,084/x
  3. Step 3: Cross multiply
    247,686.72x = 341,894.88 × 147,084
  4. Step 4: Simplify right side
    247,686.72x = 50,287,266,529.92
  5. Step 5: Solve for x
    x = 50,287,266,529.92/247,686.72
  6. Step 6: Final answer
    x = 203,027.71

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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.