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Finding the Fourth Proportional to 232.64, 348.68 and 214.64

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Solution

The fourth proportional to 232.64, 348.68 and 214.64 is: 321.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    232.64 : 348.68 = 214.64 : x
  2. Step 2: Convert to fraction form
    232.64/348.68 = 214.64/x
  3. Step 3: Cross multiply
    232.64x = 348.68 × 214.64
  4. Step 4: Simplify right side
    232.64x = 74,840.68
  5. Step 5: Solve for x
    x = 74,840.68/232.64
  6. Step 6: Final answer
    x = 321.70

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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.