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Finding the Fourth Proportional to 214.64, 296.54 and 170.71

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Solution

The fourth proportional to 214.64, 296.54 and 170.71 is: 235.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    214.64 : 296.54 = 170.71 : x
  2. Step 2: Convert to fraction form
    214.64/296.54 = 170.71/x
  3. Step 3: Cross multiply
    214.64x = 296.54 × 170.71
  4. Step 4: Simplify right side
    214.64x = 50,622.34
  5. Step 5: Solve for x
    x = 50,622.34/214.64
  6. Step 6: Final answer
    x = 235.85

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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.