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Finding the Fourth Proportional to 238.76, 360.30 and 230.61

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Solution

The fourth proportional to 238.76, 360.30 and 230.61 is: 348.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.76 : 360.30 = 230.61 : x
  2. Step 2: Convert to fraction form
    238.76/360.30 = 230.61/x
  3. Step 3: Cross multiply
    238.76x = 360.30 × 230.61
  4. Step 4: Simplify right side
    238.76x = 83,091.00
  5. Step 5: Solve for x
    x = 83,091.00/238.76
  6. Step 6: Final answer
    x = 348.01

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.