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Finding the Fourth Proportional to 214.76, 320.57 and 184.52

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Solution

The fourth proportional to 214.76, 320.57 and 184.52 is: 275.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    214.76 : 320.57 = 184.52 : x
  2. Step 2: Convert to fraction form
    214.76/320.57 = 184.52/x
  3. Step 3: Cross multiply
    214.76x = 320.57 × 184.52
  4. Step 4: Simplify right side
    214.76x = 59,151.58
  5. Step 5: Solve for x
    x = 59,151.58/214.76
  6. Step 6: Final answer
    x = 275.43

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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.