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Finding the Fourth Proportional to 320.41, 441.87 and 237.72

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Solution

The fourth proportional to 320.41, 441.87 and 237.72 is: 327.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    320.41 : 441.87 = 237.72 : x
  2. Step 2: Convert to fraction form
    320.41/441.87 = 237.72/x
  3. Step 3: Cross multiply
    320.41x = 441.87 × 237.72
  4. Step 4: Simplify right side
    320.41x = 105,041.34
  5. Step 5: Solve for x
    x = 105,041.34/320.41
  6. Step 6: Final answer
    x = 327.83

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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.