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Finding the Fourth Proportional to 301.48, 454.28 and 248.56

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Solution

The fourth proportional to 301.48, 454.28 and 248.56 is: 374.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.48 : 454.28 = 248.56 : x
  2. Step 2: Convert to fraction form
    301.48/454.28 = 248.56/x
  3. Step 3: Cross multiply
    301.48x = 454.28 × 248.56
  4. Step 4: Simplify right side
    301.48x = 112,915.84
  5. Step 5: Solve for x
    x = 112,915.84/301.48
  6. Step 6: Final answer
    x = 374.54

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.