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Finding the Fourth Proportional to 391.02, 586.35 and 174.75

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Solution

The fourth proportional to 391.02, 586.35 and 174.75 is: 262.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    391.02 : 586.35 = 174.75 : x
  2. Step 2: Convert to fraction form
    391.02/586.35 = 174.75/x
  3. Step 3: Cross multiply
    391.02x = 586.35 × 174.75
  4. Step 4: Simplify right side
    391.02x = 102,464.66
  5. Step 5: Solve for x
    x = 102,464.66/391.02
  6. Step 6: Final answer
    x = 262.04

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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.