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Finding the Fourth Proportional to 272.46, 407.82 and 237.60

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Solution

The fourth proportional to 272.46, 407.82 and 237.60 is: 355.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.46 : 407.82 = 237.60 : x
  2. Step 2: Convert to fraction form
    272.46/407.82 = 237.60/x
  3. Step 3: Cross multiply
    272.46x = 407.82 × 237.60
  4. Step 4: Simplify right side
    272.46x = 96,898.03
  5. Step 5: Solve for x
    x = 96,898.03/272.46
  6. Step 6: Final answer
    x = 355.64

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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.