Home / 311,109.40-465,497.70-283,115.80

Finding the Fourth Proportional to 311,109.40, 465,497.70 and 283,115.80

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Solution

The fourth proportional to 311,109.40, 465,497.70 and 283,115.80 is: 423,612.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,109.40 : 465,497.70 = 283,115.80 : x
  2. Step 2: Convert to fraction form
    311,109.40/465,497.70 = 283,115.80/x
  3. Step 3: Cross multiply
    311,109.40x = 465,497.70 × 283,115.80
  4. Step 4: Simplify right side
    311,109.40x = 131,789,753,733.66
  5. Step 5: Solve for x
    x = 131,789,753,733.66/311,109.40
  6. Step 6: Final answer
    x = 423,612.25

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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.