Home / 275,933.32-380,787.60-161,290.78

Finding the Fourth Proportional to 275,933.32, 380,787.60 and 161,290.78

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Solution

The fourth proportional to 275,933.32, 380,787.60 and 161,290.78 is: 222,581.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,933.32 : 380,787.60 = 161,290.78 : x
  2. Step 2: Convert to fraction form
    275,933.32/380,787.60 = 161,290.78/x
  3. Step 3: Cross multiply
    275,933.32x = 380,787.60 × 161,290.78
  4. Step 4: Simplify right side
    275,933.32x = 61,417,529,018.33
  5. Step 5: Solve for x
    x = 61,417,529,018.33/275,933.32
  6. Step 6: Final answer
    x = 222,581.05

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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.