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Finding the Fourth Proportional to 312,651.20, 468,970.24 and 75,995.12

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Solution

The fourth proportional to 312,651.20, 468,970.24 and 75,995.12 is: 113,991.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,651.20 : 468,970.24 = 75,995.12 : x
  2. Step 2: Convert to fraction form
    312,651.20/468,970.24 = 75,995.12/x
  3. Step 3: Cross multiply
    312,651.20x = 468,970.24 × 75,995.12
  4. Step 4: Simplify right side
    312,651.20x = 35,639,449,665.23
  5. Step 5: Solve for x
    x = 35,639,449,665.23/312,651.20
  6. Step 6: Final answer
    x = 113,991.09

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Similar ratio
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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.