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Finding the Fourth Proportional to 414.60, 625.15 and 363.40

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Solution

The fourth proportional to 414.60, 625.15 and 363.40 is: 547.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    414.60 : 625.15 = 363.40 : x
  2. Step 2: Convert to fraction form
    414.60/625.15 = 363.40/x
  3. Step 3: Cross multiply
    414.60x = 625.15 × 363.40
  4. Step 4: Simplify right side
    414.60x = 227,179.51
  5. Step 5: Solve for x
    x = 227,179.51/414.60
  6. Step 6: Final answer
    x = 547.95

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.