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Finding the Fourth Proportional to 275,315.44, 412,893.25 and 115,387.18

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Solution

The fourth proportional to 275,315.44, 412,893.25 and 115,387.18 is: 173,047.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,315.44 : 412,893.25 = 115,387.18 : x
  2. Step 2: Convert to fraction form
    275,315.44/412,893.25 = 115,387.18/x
  3. Step 3: Cross multiply
    275,315.44x = 412,893.25 × 115,387.18
  4. Step 4: Simplify right side
    275,315.44x = 47,642,588,760.36
  5. Step 5: Solve for x
    x = 47,642,588,760.36/275,315.44
  6. Step 6: Final answer
    x = 173,047.28

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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.