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Finding the Fourth Proportional to 322.60, 483.85 and 137.52

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Solution

The fourth proportional to 322.60, 483.85 and 137.52 is: 206.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.60 : 483.85 = 137.52 : x
  2. Step 2: Convert to fraction form
    322.60/483.85 = 137.52/x
  3. Step 3: Cross multiply
    322.60x = 483.85 × 137.52
  4. Step 4: Simplify right side
    322.60x = 66,540.58
  5. Step 5: Solve for x
    x = 66,540.58/322.60
  6. Step 6: Final answer
    x = 206.27

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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.