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Finding the Fourth Proportional to 414.88, 621.88 and 232.36

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Solution

The fourth proportional to 414.88, 621.88 and 232.36 is: 348.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    414.88 : 621.88 = 232.36 : x
  2. Step 2: Convert to fraction form
    414.88/621.88 = 232.36/x
  3. Step 3: Cross multiply
    414.88x = 621.88 × 232.36
  4. Step 4: Simplify right side
    414.88x = 144,500.04
  5. Step 5: Solve for x
    x = 144,500.04/414.88
  6. Step 6: Final answer
    x = 348.29

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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.