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Finding the Fourth Proportional to 216.28, 297.98 and 206.04

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Solution

The fourth proportional to 216.28, 297.98 and 206.04 is: 283.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    216.28 : 297.98 = 206.04 : x
  2. Step 2: Convert to fraction form
    216.28/297.98 = 206.04/x
  3. Step 3: Cross multiply
    216.28x = 297.98 × 206.04
  4. Step 4: Simplify right side
    216.28x = 61,395.80
  5. Step 5: Solve for x
    x = 61,395.80/216.28
  6. Step 6: Final answer
    x = 283.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.