Home / 290,187.74-400,478.92-161,132.88

Finding the Fourth Proportional to 290,187.74, 400,478.92 and 161,132.88

Calculator

Solution

The fourth proportional to 290,187.74, 400,478.92 and 161,132.88 is: 222,374.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,187.74 : 400,478.92 = 161,132.88 : x
  2. Step 2: Convert to fraction form
    290,187.74/400,478.92 = 161,132.88/x
  3. Step 3: Cross multiply
    290,187.74x = 400,478.92 × 161,132.88
  4. Step 4: Simplify right side
    290,187.74x = 64,530,321,758.89
  5. Step 5: Solve for x
    x = 64,530,321,758.89/290,187.74
  6. Step 6: Final answer
    x = 222,374.39

Related Problems

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.