Home / 196.21-270.70-122.50

Finding the Fourth Proportional to 196.21, 270.70 and 122.50

Calculator

Solution

The fourth proportional to 196.21, 270.70 and 122.50 is: 169.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.21 : 270.70 = 122.50 : x
  2. Step 2: Convert to fraction form
    196.21/270.70 = 122.50/x
  3. Step 3: Cross multiply
    196.21x = 270.70 × 122.50
  4. Step 4: Simplify right side
    196.21x = 33,159.77
  5. Step 5: Solve for x
    x = 33,159.77/196.21
  6. Step 6: Final answer
    x = 169.00

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.