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Finding the Fourth Proportional to 615.51, 849.42 and 335.76

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Solution

The fourth proportional to 615.51, 849.42 and 335.76 is: 463.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.51 : 849.42 = 335.76 : x
  2. Step 2: Convert to fraction form
    615.51/849.42 = 335.76/x
  3. Step 3: Cross multiply
    615.51x = 849.42 × 335.76
  4. Step 4: Simplify right side
    615.51x = 285,201.26
  5. Step 5: Solve for x
    x = 285,201.26/615.51
  6. Step 6: Final answer
    x = 463.36

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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.