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Finding the Fourth Proportional to 300,042.44, 450,080.19 and 89,696.78

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Solution

The fourth proportional to 300,042.44, 450,080.19 and 89,696.78 is: 134,550.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,042.44 : 450,080.19 = 89,696.78 : x
  2. Step 2: Convert to fraction form
    300,042.44/450,080.19 = 89,696.78/x
  3. Step 3: Cross multiply
    300,042.44x = 450,080.19 × 89,696.78
  4. Step 4: Simplify right side
    300,042.44x = 40,370,743,784.79
  5. Step 5: Solve for x
    x = 40,370,743,784.79/300,042.44
  6. Step 6: Final answer
    x = 134,550.11

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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.