Home / 275,192.95-379,769.02-154,331.64

Finding the Fourth Proportional to 275,192.95, 379,769.02 and 154,331.64

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Solution

The fourth proportional to 275,192.95, 379,769.02 and 154,331.64 is: 212,979.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,192.95 : 379,769.02 = 154,331.64 : x
  2. Step 2: Convert to fraction form
    275,192.95/379,769.02 = 154,331.64/x
  3. Step 3: Cross multiply
    275,192.95x = 379,769.02 × 154,331.64
  4. Step 4: Simplify right side
    275,192.95x = 58,610,375,886.66
  5. Step 5: Solve for x
    x = 58,610,375,886.66/275,192.95
  6. Step 6: Final answer
    x = 212,979.21

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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.