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Finding the Fourth Proportional to 214.52, 321.77 and 160.79

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Solution

The fourth proportional to 214.52, 321.77 and 160.79 is: 241.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    214.52 : 321.77 = 160.79 : x
  2. Step 2: Convert to fraction form
    214.52/321.77 = 160.79/x
  3. Step 3: Cross multiply
    214.52x = 321.77 × 160.79
  4. Step 4: Simplify right side
    214.52x = 51,736.19
  5. Step 5: Solve for x
    x = 51,736.19/214.52
  6. Step 6: Final answer
    x = 241.18

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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.