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Finding the Fourth Proportional to 254.48, 351.28 and 177.12

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Solution

The fourth proportional to 254.48, 351.28 and 177.12 is: 244.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.48 : 351.28 = 177.12 : x
  2. Step 2: Convert to fraction form
    254.48/351.28 = 177.12/x
  3. Step 3: Cross multiply
    254.48x = 351.28 × 177.12
  4. Step 4: Simplify right side
    254.48x = 62,218.71
  5. Step 5: Solve for x
    x = 62,218.71/254.48
  6. Step 6: Final answer
    x = 244.49

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.