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Finding the Fourth Proportional to 300,532.43, 450,694.86 and 87,242.52

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Solution

The fourth proportional to 300,532.43, 450,694.86 and 87,242.52 is: 130,833.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,532.43 : 450,694.86 = 87,242.52 : x
  2. Step 2: Convert to fraction form
    300,532.43/450,694.86 = 87,242.52/x
  3. Step 3: Cross multiply
    300,532.43x = 450,694.86 × 87,242.52
  4. Step 4: Simplify right side
    300,532.43x = 39,319,752,647.76
  5. Step 5: Solve for x
    x = 39,319,752,647.76/300,532.43
  6. Step 6: Final answer
    x = 130,833.65

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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.