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Finding the Fourth Proportional to 635.61, 876.97 and 373.57

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Solution

The fourth proportional to 635.61, 876.97 and 373.57 is: 515.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.61 : 876.97 = 373.57 : x
  2. Step 2: Convert to fraction form
    635.61/876.97 = 373.57/x
  3. Step 3: Cross multiply
    635.61x = 876.97 × 373.57
  4. Step 4: Simplify right side
    635.61x = 327,609.68
  5. Step 5: Solve for x
    x = 327,609.68/635.61
  6. Step 6: Final answer
    x = 515.43

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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.