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Finding the Fourth Proportional to 182.60, 252.06 and 117.20

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Solution

The fourth proportional to 182.60, 252.06 and 117.20 is: 161.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.60 : 252.06 = 117.20 : x
  2. Step 2: Convert to fraction form
    182.60/252.06 = 117.20/x
  3. Step 3: Cross multiply
    182.60x = 252.06 × 117.20
  4. Step 4: Simplify right side
    182.60x = 29,541.43
  5. Step 5: Solve for x
    x = 29,541.43/182.60
  6. Step 6: Final answer
    x = 161.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.