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Finding the Fourth Proportional to 351.12, 525.42 and 248.52

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Solution

The fourth proportional to 351.12, 525.42 and 248.52 is: 371.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.12 : 525.42 = 248.52 : x
  2. Step 2: Convert to fraction form
    351.12/525.42 = 248.52/x
  3. Step 3: Cross multiply
    351.12x = 525.42 × 248.52
  4. Step 4: Simplify right side
    351.12x = 130,577.38
  5. Step 5: Solve for x
    x = 130,577.38/351.12
  6. Step 6: Final answer
    x = 371.89

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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.