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Finding the Fourth Proportional to 351.23, 525.51 and 248.76

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Solution

The fourth proportional to 351.23, 525.51 and 248.76 is: 372.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.23 : 525.51 = 248.76 : x
  2. Step 2: Convert to fraction form
    351.23/525.51 = 248.76/x
  3. Step 3: Cross multiply
    351.23x = 525.51 × 248.76
  4. Step 4: Simplify right side
    351.23x = 130,725.87
  5. Step 5: Solve for x
    x = 130,725.87/351.23
  6. Step 6: Final answer
    x = 372.20

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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.