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Finding the Fourth Proportional to 381,976.99, 527,097.39 and 220,842.42

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Solution

The fourth proportional to 381,976.99, 527,097.39 and 220,842.42 is: 304,744.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,976.99 : 527,097.39 = 220,842.42 : x
  2. Step 2: Convert to fraction form
    381,976.99/527,097.39 = 220,842.42/x
  3. Step 3: Cross multiply
    381,976.99x = 527,097.39 × 220,842.42
  4. Step 4: Simplify right side
    381,976.99x = 116,405,463,183.28
  5. Step 5: Solve for x
    x = 116,405,463,183.28/381,976.99
  6. Step 6: Final answer
    x = 304,744.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.