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Finding the Fourth Proportional to 414.71, 621.25 and 341.69

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Solution

The fourth proportional to 414.71, 621.25 and 341.69 is: 511.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    414.71 : 621.25 = 341.69 : x
  2. Step 2: Convert to fraction form
    414.71/621.25 = 341.69/x
  3. Step 3: Cross multiply
    414.71x = 621.25 × 341.69
  4. Step 4: Simplify right side
    414.71x = 212,270.95
  5. Step 5: Solve for x
    x = 212,270.95/414.71
  6. Step 6: Final answer
    x = 511.86

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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.