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Finding the Fourth Proportional to 244.85, 366.80 and 217.58

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Solution

The fourth proportional to 244.85, 366.80 and 217.58 is: 325.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.85 : 366.80 = 217.58 : x
  2. Step 2: Convert to fraction form
    244.85/366.80 = 217.58/x
  3. Step 3: Cross multiply
    244.85x = 366.80 × 217.58
  4. Step 4: Simplify right side
    244.85x = 79,808.34
  5. Step 5: Solve for x
    x = 79,808.34/244.85
  6. Step 6: Final answer
    x = 325.95

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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.