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Finding the Fourth Proportional to 392,237.70, 588,745.35 and 192,783.30

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Solution

The fourth proportional to 392,237.70, 588,745.35 and 192,783.30 is: 289,366.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,237.70 : 588,745.35 = 192,783.30 : x
  2. Step 2: Convert to fraction form
    392,237.70/588,745.35 = 192,783.30/x
  3. Step 3: Cross multiply
    392,237.70x = 588,745.35 × 192,783.30
  4. Step 4: Simplify right side
    392,237.70x = 113,500,271,432.66
  5. Step 5: Solve for x
    x = 113,500,271,432.66/392,237.70
  6. Step 6: Final answer
    x = 289,366.04

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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.