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Finding the Fourth Proportional to 200,029.87, 300,110.51 and 81,800.65

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Solution

The fourth proportional to 200,029.87, 300,110.51 and 81,800.65 is: 122,727.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,029.87 : 300,110.51 = 81,800.65 : x
  2. Step 2: Convert to fraction form
    200,029.87/300,110.51 = 81,800.65/x
  3. Step 3: Cross multiply
    200,029.87x = 300,110.51 × 81,800.65
  4. Step 4: Simplify right side
    200,029.87x = 24,549,234,380.83
  5. Step 5: Solve for x
    x = 24,549,234,380.83/200,029.87
  6. Step 6: Final answer
    x = 122,727.84

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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.