Home / 275,135.02-379,525.46-172,998.78

Finding the Fourth Proportional to 275,135.02, 379,525.46 and 172,998.78

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Solution

The fourth proportional to 275,135.02, 379,525.46 and 172,998.78 is: 238,637.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,135.02 : 379,525.46 = 172,998.78 : x
  2. Step 2: Convert to fraction form
    275,135.02/379,525.46 = 172,998.78/x
  3. Step 3: Cross multiply
    275,135.02x = 379,525.46 × 172,998.78
  4. Step 4: Simplify right side
    275,135.02x = 65,657,441,558.94
  5. Step 5: Solve for x
    x = 65,657,441,558.94/275,135.02
  6. Step 6: Final answer
    x = 238,637.17

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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.