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Finding the Fourth Proportional to 228,092.20, 342,138.30 and 205,973.80

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Solution

The fourth proportional to 228,092.20, 342,138.30 and 205,973.80 is: 308,960.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,092.20 : 342,138.30 = 205,973.80 : x
  2. Step 2: Convert to fraction form
    228,092.20/342,138.30 = 205,973.80/x
  3. Step 3: Cross multiply
    228,092.20x = 342,138.30 × 205,973.80
  4. Step 4: Simplify right side
    228,092.20x = 70,471,525,776.54
  5. Step 5: Solve for x
    x = 70,471,525,776.54/228,092.20
  6. Step 6: Final answer
    x = 308,960.70

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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.