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Finding the Fourth Proportional to 635.27, 876.66 and 373.28

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Solution

The fourth proportional to 635.27, 876.66 and 373.28 is: 515.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.27 : 876.66 = 373.28 : x
  2. Step 2: Convert to fraction form
    635.27/876.66 = 373.28/x
  3. Step 3: Cross multiply
    635.27x = 876.66 × 373.28
  4. Step 4: Simplify right side
    635.27x = 327,239.64
  5. Step 5: Solve for x
    x = 327,239.64/635.27
  6. Step 6: Final answer
    x = 515.12

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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.