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Finding the Fourth Proportional to 182.40, 273.60 and 113.70

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Solution

The fourth proportional to 182.40, 273.60 and 113.70 is: 170.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.40 : 273.60 = 113.70 : x
  2. Step 2: Convert to fraction form
    182.40/273.60 = 113.70/x
  3. Step 3: Cross multiply
    182.40x = 273.60 × 113.70
  4. Step 4: Simplify right side
    182.40x = 31,108.32
  5. Step 5: Solve for x
    x = 31,108.32/182.40
  6. Step 6: Final answer
    x = 170.55

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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.