Home / 648.11-972.19-237.56

Finding the Fourth Proportional to 648.11, 972.19 and 237.56

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Solution

The fourth proportional to 648.11, 972.19 and 237.56 is: 356.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    648.11 : 972.19 = 237.56 : x
  2. Step 2: Convert to fraction form
    648.11/972.19 = 237.56/x
  3. Step 3: Cross multiply
    648.11x = 972.19 × 237.56
  4. Step 4: Simplify right side
    648.11x = 230,953.46
  5. Step 5: Solve for x
    x = 230,953.46/648.11
  6. Step 6: Final answer
    x = 356.35

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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.