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Finding the Fourth Proportional to 363.84, 547.68 and 325.56

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Solution

The fourth proportional to 363.84, 547.68 and 325.56 is: 490.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.84 : 547.68 = 325.56 : x
  2. Step 2: Convert to fraction form
    363.84/547.68 = 325.56/x
  3. Step 3: Cross multiply
    363.84x = 547.68 × 325.56
  4. Step 4: Simplify right side
    363.84x = 178,302.70
  5. Step 5: Solve for x
    x = 178,302.70/363.84
  6. Step 6: Final answer
    x = 490.06

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.