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Finding the Fourth Proportional to 306,350.80, 422,701.52 and 179,001.78

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Solution

The fourth proportional to 306,350.80, 422,701.52 and 179,001.78 is: 246,985.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,350.80 : 422,701.52 = 179,001.78 : x
  2. Step 2: Convert to fraction form
    306,350.80/422,701.52 = 179,001.78/x
  3. Step 3: Cross multiply
    306,350.80x = 422,701.52 × 179,001.78
  4. Step 4: Simplify right side
    306,350.80x = 75,664,324,488.71
  5. Step 5: Solve for x
    x = 75,664,324,488.71/306,350.80
  6. Step 6: Final answer
    x = 246,985.89

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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.