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Finding the Fourth Proportional to 633.57, 874.26 and 367.92

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Solution

The fourth proportional to 633.57, 874.26 and 367.92 is: 507.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.57 : 874.26 = 367.92 : x
  2. Step 2: Convert to fraction form
    633.57/874.26 = 367.92/x
  3. Step 3: Cross multiply
    633.57x = 874.26 × 367.92
  4. Step 4: Simplify right side
    633.57x = 321,657.74
  5. Step 5: Solve for x
    x = 321,657.74/633.57
  6. Step 6: Final answer
    x = 507.69

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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.