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Finding the Fourth Proportional to 583.42, 874.11 and 308.86

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Solution

The fourth proportional to 583.42, 874.11 and 308.86 is: 462.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.42 : 874.11 = 308.86 : x
  2. Step 2: Convert to fraction form
    583.42/874.11 = 308.86/x
  3. Step 3: Cross multiply
    583.42x = 874.11 × 308.86
  4. Step 4: Simplify right side
    583.42x = 269,977.61
  5. Step 5: Solve for x
    x = 269,977.61/583.42
  6. Step 6: Final answer
    x = 462.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.