Home / 275,723.52-380,401.56-180,286.08

Finding the Fourth Proportional to 275,723.52, 380,401.56 and 180,286.08

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Solution

The fourth proportional to 275,723.52, 380,401.56 and 180,286.08 is: 248,731.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,723.52 : 380,401.56 = 180,286.08 : x
  2. Step 2: Convert to fraction form
    275,723.52/380,401.56 = 180,286.08/x
  3. Step 3: Cross multiply
    275,723.52x = 380,401.56 × 180,286.08
  4. Step 4: Simplify right side
    275,723.52x = 68,581,106,078.28
  5. Step 5: Solve for x
    x = 68,581,106,078.28/275,723.52
  6. Step 6: Final answer
    x = 248,731.43

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1.5x scale

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.