Home / 342.12-472.11-211.14

Finding the Fourth Proportional to 342.12, 472.11 and 211.14

Calculator

Solution

The fourth proportional to 342.12, 472.11 and 211.14 is: 291.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    342.12 : 472.11 = 211.14 : x
  2. Step 2: Convert to fraction form
    342.12/472.11 = 211.14/x
  3. Step 3: Cross multiply
    342.12x = 472.11 × 211.14
  4. Step 4: Simplify right side
    342.12x = 99,681.31
  5. Step 5: Solve for x
    x = 99,681.31/342.12
  6. Step 6: Final answer
    x = 291.36

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.