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Finding the Fourth Proportional to 223.47, 332.99 and 217.19

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Solution

The fourth proportional to 223.47, 332.99 and 217.19 is: 323.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.47 : 332.99 = 217.19 : x
  2. Step 2: Convert to fraction form
    223.47/332.99 = 217.19/x
  3. Step 3: Cross multiply
    223.47x = 332.99 × 217.19
  4. Step 4: Simplify right side
    223.47x = 72,319.35
  5. Step 5: Solve for x
    x = 72,319.35/223.47
  6. Step 6: Final answer
    x = 323.62

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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.