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Finding the Fourth Proportional to 273.32, 377.10 and 238.70

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Solution

The fourth proportional to 273.32, 377.10 and 238.70 is: 329.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.32 : 377.10 = 238.70 : x
  2. Step 2: Convert to fraction form
    273.32/377.10 = 238.70/x
  3. Step 3: Cross multiply
    273.32x = 377.10 × 238.70
  4. Step 4: Simplify right side
    273.32x = 90,013.77
  5. Step 5: Solve for x
    x = 90,013.77/273.32
  6. Step 6: Final answer
    x = 329.33

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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.