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Finding the Fourth Proportional to 414.43, 621.88 and 183.30

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Solution

The fourth proportional to 414.43, 621.88 and 183.30 is: 275.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    414.43 : 621.88 = 183.30 : x
  2. Step 2: Convert to fraction form
    414.43/621.88 = 183.30/x
  3. Step 3: Cross multiply
    414.43x = 621.88 × 183.30
  4. Step 4: Simplify right side
    414.43x = 113,990.60
  5. Step 5: Solve for x
    x = 113,990.60/414.43
  6. Step 6: Final answer
    x = 275.05

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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.