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Finding the Fourth Proportional to 256,876.24, 354,472.86 and 140,566.12

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Solution

The fourth proportional to 256,876.24, 354,472.86 and 140,566.12 is: 193,972.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,876.24 : 354,472.86 = 140,566.12 : x
  2. Step 2: Convert to fraction form
    256,876.24/354,472.86 = 140,566.12/x
  3. Step 3: Cross multiply
    256,876.24x = 354,472.86 × 140,566.12
  4. Step 4: Simplify right side
    256,876.24x = 49,826,874,575.50
  5. Step 5: Solve for x
    x = 49,826,874,575.50/256,876.24
  6. Step 6: Final answer
    x = 193,972.30

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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.