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Finding the Fourth Proportional to 288,676, 398,366.04 and 161,363.44

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Solution

The fourth proportional to 288,676, 398,366.04 and 161,363.44 is: 222,677.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,676 : 398,366.04 = 161,363.44 : x
  2. Step 2: Convert to fraction form
    288,676/398,366.04 = 161,363.44/x
  3. Step 3: Cross multiply
    288,676x = 398,366.04 × 161,363.44
  4. Step 4: Simplify right side
    288,676x = 64,281,714,593.58
  5. Step 5: Solve for x
    x = 64,281,714,593.58/288,676
  6. Step 6: Final answer
    x = 222,677.72

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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.