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Finding the Fourth Proportional to 618.18, 927.16 and 207.26

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Solution

The fourth proportional to 618.18, 927.16 and 207.26 is: 310.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.18 : 927.16 = 207.26 : x
  2. Step 2: Convert to fraction form
    618.18/927.16 = 207.26/x
  3. Step 3: Cross multiply
    618.18x = 927.16 × 207.26
  4. Step 4: Simplify right side
    618.18x = 192,163.18
  5. Step 5: Solve for x
    x = 192,163.18/618.18
  6. Step 6: Final answer
    x = 310.85

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Similar ratio
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1.5x scale

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.