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Finding the Fourth Proportional to 392.94, 588.57 and 200.70

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Solution

The fourth proportional to 392.94, 588.57 and 200.70 is: 300.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    392.94 : 588.57 = 200.70 : x
  2. Step 2: Convert to fraction form
    392.94/588.57 = 200.70/x
  3. Step 3: Cross multiply
    392.94x = 588.57 × 200.70
  4. Step 4: Simplify right side
    392.94x = 118,126.00
  5. Step 5: Solve for x
    x = 118,126.00/392.94
  6. Step 6: Final answer
    x = 300.62

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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.