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Finding the Fourth Proportional to 363,178.80, 500,640.48 and 286,565.76

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Solution

The fourth proportional to 363,178.80, 500,640.48 and 286,565.76 is: 395,029.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,178.80 : 500,640.48 = 286,565.76 : x
  2. Step 2: Convert to fraction form
    363,178.80/500,640.48 = 286,565.76/x
  3. Step 3: Cross multiply
    363,178.80x = 500,640.48 × 286,565.76
  4. Step 4: Simplify right side
    363,178.80x = 143,466,419,637.97
  5. Step 5: Solve for x
    x = 143,466,419,637.97/363,178.80
  6. Step 6: Final answer
    x = 395,029.72

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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.