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Finding the Fourth Proportional to 322.58, 484.18 and 250.90

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Solution

The fourth proportional to 322.58, 484.18 and 250.90 is: 376.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.58 : 484.18 = 250.90 : x
  2. Step 2: Convert to fraction form
    322.58/484.18 = 250.90/x
  3. Step 3: Cross multiply
    322.58x = 484.18 × 250.90
  4. Step 4: Simplify right side
    322.58x = 121,478.92
  5. Step 5: Solve for x
    x = 121,478.92/322.58
  6. Step 6: Final answer
    x = 376.58

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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.