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Finding the Fourth Proportional to 395.85, 593.48 and 190.26

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Solution

The fourth proportional to 395.85, 593.48 and 190.26 is: 285.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.85 : 593.48 = 190.26 : x
  2. Step 2: Convert to fraction form
    395.85/593.48 = 190.26/x
  3. Step 3: Cross multiply
    395.85x = 593.48 × 190.26
  4. Step 4: Simplify right side
    395.85x = 112,915.50
  5. Step 5: Solve for x
    x = 112,915.50/395.85
  6. Step 6: Final answer
    x = 285.25

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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.