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Finding the Fourth Proportional to 361,186.73, 498,441.35 and 217,919.10

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Solution

The fourth proportional to 361,186.73, 498,441.35 and 217,919.10 is: 300,730.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,186.73 : 498,441.35 = 217,919.10 : x
  2. Step 2: Convert to fraction form
    361,186.73/498,441.35 = 217,919.10/x
  3. Step 3: Cross multiply
    361,186.73x = 498,441.35 × 217,919.10
  4. Step 4: Simplify right side
    361,186.73x = 108,619,887,902.58
  5. Step 5: Solve for x
    x = 108,619,887,902.58/361,186.73
  6. Step 6: Final answer
    x = 300,730.56

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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.