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Finding the Fourth Proportional to 395.28, 591.88 and 334.28

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Solution

The fourth proportional to 395.28, 591.88 and 334.28 is: 500.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.28 : 591.88 = 334.28 : x
  2. Step 2: Convert to fraction form
    395.28/591.88 = 334.28/x
  3. Step 3: Cross multiply
    395.28x = 591.88 × 334.28
  4. Step 4: Simplify right side
    395.28x = 197,853.65
  5. Step 5: Solve for x
    x = 197,853.65/395.28
  6. Step 6: Final answer
    x = 500.54

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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.