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Finding the Fourth Proportional to 361,861, 499,370.60 and 200,718.79

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Solution

The fourth proportional to 361,861, 499,370.60 and 200,718.79 is: 276,993.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,861 : 499,370.60 = 200,718.79 : x
  2. Step 2: Convert to fraction form
    361,861/499,370.60 = 200,718.79/x
  3. Step 3: Cross multiply
    361,861x = 499,370.60 × 200,718.79
  4. Step 4: Simplify right side
    361,861x = 100,233,062,593.57
  5. Step 5: Solve for x
    x = 100,233,062,593.57/361,861
  6. Step 6: Final answer
    x = 276,993.27

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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.