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Finding the Fourth Proportional to 219.60, 327.46 and 214.35

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Solution

The fourth proportional to 219.60, 327.46 and 214.35 is: 319.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    219.60 : 327.46 = 214.35 : x
  2. Step 2: Convert to fraction form
    219.60/327.46 = 214.35/x
  3. Step 3: Cross multiply
    219.60x = 327.46 × 214.35
  4. Step 4: Simplify right side
    219.60x = 70,189.98
  5. Step 5: Solve for x
    x = 70,189.98/219.60
  6. Step 6: Final answer
    x = 319.63

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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.