Home / 275,728.46-380,478.39-154,842.26

Finding the Fourth Proportional to 275,728.46, 380,478.39 and 154,842.26

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Solution

The fourth proportional to 275,728.46, 380,478.39 and 154,842.26 is: 213,667.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,728.46 : 380,478.39 = 154,842.26 : x
  2. Step 2: Convert to fraction form
    275,728.46/380,478.39 = 154,842.26/x
  3. Step 3: Cross multiply
    275,728.46x = 380,478.39 × 154,842.26
  4. Step 4: Simplify right side
    275,728.46x = 58,914,131,886.37
  5. Step 5: Solve for x
    x = 58,914,131,886.37/275,728.46
  6. Step 6: Final answer
    x = 213,667.22

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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.