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Finding the Fourth Proportional to 652.70, 979.04 and 165.75

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Solution

The fourth proportional to 652.70, 979.04 and 165.75 is: 248.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    652.70 : 979.04 = 165.75 : x
  2. Step 2: Convert to fraction form
    652.70/979.04 = 165.75/x
  3. Step 3: Cross multiply
    652.70x = 979.04 × 165.75
  4. Step 4: Simplify right side
    652.70x = 162,272.39
  5. Step 5: Solve for x
    x = 162,272.39/652.70
  6. Step 6: Final answer
    x = 248.62

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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.