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Finding the Fourth Proportional to 308,560.97, 425,642.80 and 179,484.91

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Solution

The fourth proportional to 308,560.97, 425,642.80 and 179,484.91 is: 247,589.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,560.97 : 425,642.80 = 179,484.91 : x
  2. Step 2: Convert to fraction form
    308,560.97/425,642.80 = 179,484.91/x
  3. Step 3: Cross multiply
    308,560.97x = 425,642.80 × 179,484.91
  4. Step 4: Simplify right side
    308,560.97x = 76,396,459,650.15
  5. Step 5: Solve for x
    x = 76,396,459,650.15/308,560.97
  6. Step 6: Final answer
    x = 247,589.51

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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.