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Finding the Fourth Proportional to 414.36, 621.59 and 250.11

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Solution

The fourth proportional to 414.36, 621.59 and 250.11 is: 375.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    414.36 : 621.59 = 250.11 : x
  2. Step 2: Convert to fraction form
    414.36/621.59 = 250.11/x
  3. Step 3: Cross multiply
    414.36x = 621.59 × 250.11
  4. Step 4: Simplify right side
    414.36x = 155,464.62
  5. Step 5: Solve for x
    x = 155,464.62/414.36
  6. Step 6: Final answer
    x = 375.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.