Home / 311,943.10-465,658.09-274,109.20

Finding the Fourth Proportional to 311,943.10, 465,658.09 and 274,109.20

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Solution

The fourth proportional to 311,943.10, 465,658.09 and 274,109.20 is: 409,180.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,943.10 : 465,658.09 = 274,109.20 : x
  2. Step 2: Convert to fraction form
    311,943.10/465,658.09 = 274,109.20/x
  3. Step 3: Cross multiply
    311,943.10x = 465,658.09 × 274,109.20
  4. Step 4: Simplify right side
    311,943.10x = 127,641,166,523.43
  5. Step 5: Solve for x
    x = 127,641,166,523.43/311,943.10
  6. Step 6: Final answer
    x = 409,180.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.