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Finding the Fourth Proportional to 410.44, 615.35 and 248.09

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Solution

The fourth proportional to 410.44, 615.35 and 248.09 is: 371.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    410.44 : 615.35 = 248.09 : x
  2. Step 2: Convert to fraction form
    410.44/615.35 = 248.09/x
  3. Step 3: Cross multiply
    410.44x = 615.35 × 248.09
  4. Step 4: Simplify right side
    410.44x = 152,659.72
  5. Step 5: Solve for x
    x = 152,659.72/410.44
  6. Step 6: Final answer
    x = 371.94

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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.