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Finding the Fourth Proportional to 322.95, 484.53 and 231.57

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Solution

The fourth proportional to 322.95, 484.53 and 231.57 is: 347.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.95 : 484.53 = 231.57 : x
  2. Step 2: Convert to fraction form
    322.95/484.53 = 231.57/x
  3. Step 3: Cross multiply
    322.95x = 484.53 × 231.57
  4. Step 4: Simplify right side
    322.95x = 112,202.61
  5. Step 5: Solve for x
    x = 112,202.61/322.95
  6. Step 6: Final answer
    x = 347.43

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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.