Home / 275,827.31-380,680.06-154,977.95

Finding the Fourth Proportional to 275,827.31, 380,680.06 and 154,977.95

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Solution

The fourth proportional to 275,827.31, 380,680.06 and 154,977.95 is: 213,891.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,827.31 : 380,680.06 = 154,977.95 : x
  2. Step 2: Convert to fraction form
    275,827.31/380,680.06 = 154,977.95/x
  3. Step 3: Cross multiply
    275,827.31x = 380,680.06 × 154,977.95
  4. Step 4: Simplify right side
    275,827.31x = 58,997,013,401.28
  5. Step 5: Solve for x
    x = 58,997,013,401.28/275,827.31
  6. Step 6: Final answer
    x = 213,891.12

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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.