Home / 275,125.73-379,512.27-172,989.36

Finding the Fourth Proportional to 275,125.73, 379,512.27 and 172,989.36

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Solution

The fourth proportional to 275,125.73, 379,512.27 and 172,989.36 is: 238,623.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,125.73 : 379,512.27 = 172,989.36 : x
  2. Step 2: Convert to fraction form
    275,125.73/379,512.27 = 172,989.36/x
  3. Step 3: Cross multiply
    275,125.73x = 379,512.27 × 172,989.36
  4. Step 4: Simplify right side
    275,125.73x = 65,651,584,699.45
  5. Step 5: Solve for x
    x = 65,651,584,699.45/275,125.73
  6. Step 6: Final answer
    x = 238,623.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.