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Finding the Fourth Proportional to 192,251.70, 288,377.43 and 139,993.62

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Solution

The fourth proportional to 192,251.70, 288,377.43 and 139,993.62 is: 209,990.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,251.70 : 288,377.43 = 139,993.62 : x
  2. Step 2: Convert to fraction form
    192,251.70/288,377.43 = 139,993.62/x
  3. Step 3: Cross multiply
    192,251.70x = 288,377.43 × 139,993.62
  4. Step 4: Simplify right side
    192,251.70x = 40,371,000,352.00
  5. Step 5: Solve for x
    x = 40,371,000,352.00/192,251.70
  6. Step 6: Final answer
    x = 209,990.34

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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.