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Finding the Fourth Proportional to 311,935.70, 467,903.55 and 125,081.30

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Solution

The fourth proportional to 311,935.70, 467,903.55 and 125,081.30 is: 187,621.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,935.70 : 467,903.55 = 125,081.30 : x
  2. Step 2: Convert to fraction form
    311,935.70/467,903.55 = 125,081.30/x
  3. Step 3: Cross multiply
    311,935.70x = 467,903.55 × 125,081.30
  4. Step 4: Simplify right side
    311,935.70x = 58,525,984,308.62
  5. Step 5: Solve for x
    x = 58,525,984,308.62/311,935.70
  6. Step 6: Final answer
    x = 187,621.95

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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.