Home / 311,917.10-465,619.35-274,083.20

Finding the Fourth Proportional to 311,917.10, 465,619.35 and 274,083.20

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Solution

The fourth proportional to 311,917.10, 465,619.35 and 274,083.20 is: 409,142.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,917.10 : 465,619.35 = 274,083.20 : x
  2. Step 2: Convert to fraction form
    311,917.10/465,619.35 = 274,083.20/x
  3. Step 3: Cross multiply
    311,917.10x = 465,619.35 × 274,083.20
  4. Step 4: Simplify right side
    311,917.10x = 127,618,440,059.50
  5. Step 5: Solve for x
    x = 127,618,440,059.50/311,917.10
  6. Step 6: Final answer
    x = 409,142.17

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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.