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Finding the Fourth Proportional to 300,891.85, 450,784.19 and 188,551.13

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Solution

The fourth proportional to 300,891.85, 450,784.19 and 188,551.13 is: 282,479.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,891.85 : 450,784.19 = 188,551.13 : x
  2. Step 2: Convert to fraction form
    300,891.85/450,784.19 = 188,551.13/x
  3. Step 3: Cross multiply
    300,891.85x = 450,784.19 × 188,551.13
  4. Step 4: Simplify right side
    300,891.85x = 84,995,866,340.92
  5. Step 5: Solve for x
    x = 84,995,866,340.92/300,891.85
  6. Step 6: Final answer
    x = 282,479.79

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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.