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Finding the Fourth Proportional to 218,833.20, 328,249.80 and 108,010.80

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Solution

The fourth proportional to 218,833.20, 328,249.80 and 108,010.80 is: 162,016.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,833.20 : 328,249.80 = 108,010.80 : x
  2. Step 2: Convert to fraction form
    218,833.20/328,249.80 = 108,010.80/x
  3. Step 3: Cross multiply
    218,833.20x = 328,249.80 × 108,010.80
  4. Step 4: Simplify right side
    218,833.20x = 35,454,523,497.84
  5. Step 5: Solve for x
    x = 35,454,523,497.84/218,833.20
  6. Step 6: Final answer
    x = 162,016.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.