Home / 143.10-211.62-143.10

Finding the Fourth Proportional to 143.10, 211.62 and 143.10

Calculator

Solution

The fourth proportional to 143.10, 211.62 and 143.10 is: 211.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143.10 : 211.62 = 143.10 : x
  2. Step 2: Convert to fraction form
    143.10/211.62 = 143.10/x
  3. Step 3: Cross multiply
    143.10x = 211.62 × 143.10
  4. Step 4: Simplify right side
    143.10x = 30,282.82
  5. Step 5: Solve for x
    x = 30,282.82/143.10
  6. Step 6: Final answer
    x = 211.62

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.