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Finding the Fourth Proportional to 300,891.60, 450,783.81 and 188,550.88

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Solution

The fourth proportional to 300,891.60, 450,783.81 and 188,550.88 is: 282,479.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,891.60 : 450,783.81 = 188,550.88 : x
  2. Step 2: Convert to fraction form
    300,891.60/450,783.81 = 188,550.88/x
  3. Step 3: Cross multiply
    300,891.60x = 450,783.81 × 188,550.88
  4. Step 4: Simplify right side
    300,891.60x = 84,995,682,938.29
  5. Step 5: Solve for x
    x = 84,995,682,938.29/300,891.60
  6. Step 6: Final answer
    x = 282,479.41

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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.