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Finding the Fourth Proportional to 392.45, 588.67 and 334.13

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Solution

The fourth proportional to 392.45, 588.67 and 334.13 is: 501.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    392.45 : 588.67 = 334.13 : x
  2. Step 2: Convert to fraction form
    392.45/588.67 = 334.13/x
  3. Step 3: Cross multiply
    392.45x = 588.67 × 334.13
  4. Step 4: Simplify right side
    392.45x = 196,688.53
  5. Step 5: Solve for x
    x = 196,688.53/392.45
  6. Step 6: Final answer
    x = 501.19

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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.