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Finding the Fourth Proportional to 615.25, 849.06 and 353.27

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Solution

The fourth proportional to 615.25, 849.06 and 353.27 is: 487.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.25 : 849.06 = 353.27 : x
  2. Step 2: Convert to fraction form
    615.25/849.06 = 353.27/x
  3. Step 3: Cross multiply
    615.25x = 849.06 × 353.27
  4. Step 4: Simplify right side
    615.25x = 299,943.18
  5. Step 5: Solve for x
    x = 299,943.18/615.25
  6. Step 6: Final answer
    x = 487.52

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Why These Related Problems?

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