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Finding the Fourth Proportional to 331,391.96, 457,380.44 and 195,417.76

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Solution

The fourth proportional to 331,391.96, 457,380.44 and 195,417.76 is: 269,711.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,391.96 : 457,380.44 = 195,417.76 : x
  2. Step 2: Convert to fraction form
    331,391.96/457,380.44 = 195,417.76/x
  3. Step 3: Cross multiply
    331,391.96x = 457,380.44 × 195,417.76
  4. Step 4: Simplify right side
    331,391.96x = 89,380,261,052.61
  5. Step 5: Solve for x
    x = 89,380,261,052.61/331,391.96
  6. Step 6: Final answer
    x = 269,711.62

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1.5x scale

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.