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Finding the Fourth Proportional to 272.48, 407.52 and 233.60

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Solution

The fourth proportional to 272.48, 407.52 and 233.60 is: 349.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.48 : 407.52 = 233.60 : x
  2. Step 2: Convert to fraction form
    272.48/407.52 = 233.60/x
  3. Step 3: Cross multiply
    272.48x = 407.52 × 233.60
  4. Step 4: Simplify right side
    272.48x = 95,196.67
  5. Step 5: Solve for x
    x = 95,196.67/272.48
  6. Step 6: Final answer
    x = 349.37

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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.