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Finding the Fourth Proportional to 252,967.70, 378,771.56 and 192,709.10

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Solution

The fourth proportional to 252,967.70, 378,771.56 and 192,709.10 is: 288,545.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,967.70 : 378,771.56 = 192,709.10 : x
  2. Step 2: Convert to fraction form
    252,967.70/378,771.56 = 192,709.10/x
  3. Step 3: Cross multiply
    252,967.70x = 378,771.56 × 192,709.10
  4. Step 4: Simplify right side
    252,967.70x = 72,992,726,433.20
  5. Step 5: Solve for x
    x = 72,992,726,433.20/252,967.70
  6. Step 6: Final answer
    x = 288,545.64

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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.