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Finding the Fourth Proportional to 635.29, 876.61 and 369.65

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Solution

The fourth proportional to 635.29, 876.61 and 369.65 is: 510.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.29 : 876.61 = 369.65 : x
  2. Step 2: Convert to fraction form
    635.29/876.61 = 369.65/x
  3. Step 3: Cross multiply
    635.29x = 876.61 × 369.65
  4. Step 4: Simplify right side
    635.29x = 324,038.89
  5. Step 5: Solve for x
    x = 324,038.89/635.29
  6. Step 6: Final answer
    x = 510.06

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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.