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Finding the Fourth Proportional to 272.34, 374.75 and 251.68

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Solution

The fourth proportional to 272.34, 374.75 and 251.68 is: 346.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.34 : 374.75 = 251.68 : x
  2. Step 2: Convert to fraction form
    272.34/374.75 = 251.68/x
  3. Step 3: Cross multiply
    272.34x = 374.75 × 251.68
  4. Step 4: Simplify right side
    272.34x = 94,317.08
  5. Step 5: Solve for x
    x = 94,317.08/272.34
  6. Step 6: Final answer
    x = 346.32

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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.