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Finding the Fourth Proportional to 635.19, 876.84 and 373.22

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Solution

The fourth proportional to 635.19, 876.84 and 373.22 is: 515.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.19 : 876.84 = 373.22 : x
  2. Step 2: Convert to fraction form
    635.19/876.84 = 373.22/x
  3. Step 3: Cross multiply
    635.19x = 876.84 × 373.22
  4. Step 4: Simplify right side
    635.19x = 327,253.83
  5. Step 5: Solve for x
    x = 327,253.83/635.19
  6. Step 6: Final answer
    x = 515.21

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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.