Home / 142,458-211,491

Finding the Third Proportional to 142,458 and 211,491

Calculator

Solution

The third proportional to 142,458 and 211,491 is: 313,976.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,458 : 211,491 = 211,491 : x
  2. Step 2: Convert to fraction form
    142,458/211,491 = 211,491/x
  3. Step 3: Cross multiply
    142,458x = 211,491 × 211,491
  4. Step 4: Simplify right side
    142,458x = 44,728,443,081
  5. Step 5: Solve for x
    x = 44,728,443,081/142,458
  6. Step 6: Final answer
    x = 313,976.35

Related Problems

Find third proportional to 71,229 and 105,745.50
Half scale
Find third proportional to 284,916 and 422,982
Double scale
Find third proportional to 142,460 and 211,494
Similar ratio
Find third proportional to 213,687 and 317,236.50
1.5x scale

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.