Home / 648.27-972.41-215.37

Finding the Fourth Proportional to 648.27, 972.41 and 215.37

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Solution

The fourth proportional to 648.27, 972.41 and 215.37 is: 323.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    648.27 : 972.41 = 215.37 : x
  2. Step 2: Convert to fraction form
    648.27/972.41 = 215.37/x
  3. Step 3: Cross multiply
    648.27x = 972.41 × 215.37
  4. Step 4: Simplify right side
    648.27x = 209,426.86
  5. Step 5: Solve for x
    x = 209,426.86/648.27
  6. Step 6: Final answer
    x = 323.06

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Similar ratio
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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.