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Finding the Fourth Proportional to 276,329.64, 381,348.90 and 163,149.96

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Solution

The fourth proportional to 276,329.64, 381,348.90 and 163,149.96 is: 225,155.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,329.64 : 381,348.90 = 163,149.96 : x
  2. Step 2: Convert to fraction form
    276,329.64/381,348.90 = 163,149.96/x
  3. Step 3: Cross multiply
    276,329.64x = 381,348.90 × 163,149.96
  4. Step 4: Simplify right side
    276,329.64x = 62,217,057,781.04
  5. Step 5: Solve for x
    x = 62,217,057,781.04/276,329.64
  6. Step 6: Final answer
    x = 225,155.21

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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.