Home / 275,135.28-379,525.83-172,999.04

Finding the Fourth Proportional to 275,135.28, 379,525.83 and 172,999.04

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Solution

The fourth proportional to 275,135.28, 379,525.83 and 172,999.04 is: 238,637.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,135.28 : 379,525.83 = 172,999.04 : x
  2. Step 2: Convert to fraction form
    275,135.28/379,525.83 = 172,999.04/x
  3. Step 3: Cross multiply
    275,135.28x = 379,525.83 × 172,999.04
  4. Step 4: Simplify right side
    275,135.28x = 65,657,604,320.22
  5. Step 5: Solve for x
    x = 65,657,604,320.22/275,135.28
  6. Step 6: Final answer
    x = 238,637.53

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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.