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Finding the Fourth Proportional to 243,793.92, 336,360.96 and 158,880

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Solution

The fourth proportional to 243,793.92, 336,360.96 and 158,880 is: 219,205.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,793.92 : 336,360.96 = 158,880 : x
  2. Step 2: Convert to fraction form
    243,793.92/336,360.96 = 158,880/x
  3. Step 3: Cross multiply
    243,793.92x = 336,360.96 × 158,880
  4. Step 4: Simplify right side
    243,793.92x = 53,441,029,324.80
  5. Step 5: Solve for x
    x = 53,441,029,324.80/243,793.92
  6. Step 6: Final answer
    x = 219,205.75

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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.