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Finding the Fourth Proportional to 192,800.79, 288,702.90 and 133,013.61

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Solution

The fourth proportional to 192,800.79, 288,702.90 and 133,013.61 is: 199,176.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,800.79 : 288,702.90 = 133,013.61 : x
  2. Step 2: Convert to fraction form
    192,800.79/288,702.90 = 133,013.61/x
  3. Step 3: Cross multiply
    192,800.79x = 288,702.90 × 133,013.61
  4. Step 4: Simplify right side
    192,800.79x = 38,401,414,946.47
  5. Step 5: Solve for x
    x = 38,401,414,946.47/192,800.79
  6. Step 6: Final answer
    x = 199,176.65

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1.5x scale

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.