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Finding the Fourth Proportional to 272.30, 375.77 and 174.05

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Solution

The fourth proportional to 272.30, 375.77 and 174.05 is: 240.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.30 : 375.77 = 174.05 : x
  2. Step 2: Convert to fraction form
    272.30/375.77 = 174.05/x
  3. Step 3: Cross multiply
    272.30x = 375.77 × 174.05
  4. Step 4: Simplify right side
    272.30x = 65,400.02
  5. Step 5: Solve for x
    x = 65,400.02/272.30
  6. Step 6: Final answer
    x = 240.18

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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.