Home / 275,021.28-412,428.23-115,108.29

Finding the Fourth Proportional to 275,021.28, 412,428.23 and 115,108.29

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Solution

The fourth proportional to 275,021.28, 412,428.23 and 115,108.29 is: 172,619.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,021.28 : 412,428.23 = 115,108.29 : x
  2. Step 2: Convert to fraction form
    275,021.28/412,428.23 = 115,108.29/x
  3. Step 3: Cross multiply
    275,021.28x = 412,428.23 × 115,108.29
  4. Step 4: Simplify right side
    275,021.28x = 47,473,907,727.49
  5. Step 5: Solve for x
    x = 47,473,907,727.49/275,021.28
  6. Step 6: Final answer
    x = 172,619.03

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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.