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Finding the Fourth Proportional to 635.36, 876.56 and 373.28

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Solution

The fourth proportional to 635.36, 876.56 and 373.28 is: 514.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.36 : 876.56 = 373.28 : x
  2. Step 2: Convert to fraction form
    635.36/876.56 = 373.28/x
  3. Step 3: Cross multiply
    635.36x = 876.56 × 373.28
  4. Step 4: Simplify right side
    635.36x = 327,202.32
  5. Step 5: Solve for x
    x = 327,202.32/635.36
  6. Step 6: Final answer
    x = 514.99

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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.