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Finding the Fourth Proportional to 635.24, 876.69 and 373.21

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Solution

The fourth proportional to 635.24, 876.69 and 373.21 is: 515.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.24 : 876.69 = 373.21 : x
  2. Step 2: Convert to fraction form
    635.24/876.69 = 373.21/x
  3. Step 3: Cross multiply
    635.24x = 876.69 × 373.21
  4. Step 4: Simplify right side
    635.24x = 327,187.28
  5. Step 5: Solve for x
    x = 327,187.28/635.24
  6. Step 6: Final answer
    x = 515.06

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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.