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Finding the Fourth Proportional to 633.37, 873.78 and 371.26

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Solution

The fourth proportional to 633.37, 873.78 and 371.26 is: 512.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.37 : 873.78 = 371.26 : x
  2. Step 2: Convert to fraction form
    633.37/873.78 = 371.26/x
  3. Step 3: Cross multiply
    633.37x = 873.78 × 371.26
  4. Step 4: Simplify right side
    633.37x = 324,399.56
  5. Step 5: Solve for x
    x = 324,399.56/633.37
  6. Step 6: Final answer
    x = 512.18

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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.