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Finding the Fourth Proportional to 214.80, 320.52 and 182.16

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Solution

The fourth proportional to 214.80, 320.52 and 182.16 is: 271.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    214.80 : 320.52 = 182.16 : x
  2. Step 2: Convert to fraction form
    214.80/320.52 = 182.16/x
  3. Step 3: Cross multiply
    214.80x = 320.52 × 182.16
  4. Step 4: Simplify right side
    214.80x = 58,385.92
  5. Step 5: Solve for x
    x = 58,385.92/214.80
  6. Step 6: Final answer
    x = 271.82

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.