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Finding the Fourth Proportional to 311,860.71, 467,786.95 and 75,201.48

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Solution

The fourth proportional to 311,860.71, 467,786.95 and 75,201.48 is: 112,801.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,860.71 : 467,786.95 = 75,201.48 : x
  2. Step 2: Convert to fraction form
    311,860.71/467,786.95 = 75,201.48/x
  3. Step 3: Cross multiply
    311,860.71x = 467,786.95 × 75,201.48
  4. Step 4: Simplify right side
    311,860.71x = 35,178,270,776.68
  5. Step 5: Solve for x
    x = 35,178,270,776.68/311,860.71
  6. Step 6: Final answer
    x = 112,801.23

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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.