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Finding the Fourth Proportional to 417.19, 624.97 and 325.46

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Solution

The fourth proportional to 417.19, 624.97 and 325.46 is: 487.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    417.19 : 624.97 = 325.46 : x
  2. Step 2: Convert to fraction form
    417.19/624.97 = 325.46/x
  3. Step 3: Cross multiply
    417.19x = 624.97 × 325.46
  4. Step 4: Simplify right side
    417.19x = 203,402.74
  5. Step 5: Solve for x
    x = 203,402.74/417.19
  6. Step 6: Final answer
    x = 487.55

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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.