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Finding the Fourth Proportional to 272.13, 407.33 and 174.50

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Solution

The fourth proportional to 272.13, 407.33 and 174.50 is: 261.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.13 : 407.33 = 174.50 : x
  2. Step 2: Convert to fraction form
    272.13/407.33 = 174.50/x
  3. Step 3: Cross multiply
    272.13x = 407.33 × 174.50
  4. Step 4: Simplify right side
    272.13x = 71,079.01
  5. Step 5: Solve for x
    x = 71,079.01/272.13
  6. Step 6: Final answer
    x = 261.20

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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.