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Finding the Fourth Proportional to 239.08, 360.23 and 216.28

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Solution

The fourth proportional to 239.08, 360.23 and 216.28 is: 325.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.08 : 360.23 = 216.28 : x
  2. Step 2: Convert to fraction form
    239.08/360.23 = 216.28/x
  3. Step 3: Cross multiply
    239.08x = 360.23 × 216.28
  4. Step 4: Simplify right side
    239.08x = 77,910.54
  5. Step 5: Solve for x
    x = 77,910.54/239.08
  6. Step 6: Final answer
    x = 325.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.