Home / 136,428-210,474

Finding the Third Proportional to 136,428 and 210,474

Calculator

Solution

The third proportional to 136,428 and 210,474 is: 324,708.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,428 : 210,474 = 210,474 : x
  2. Step 2: Convert to fraction form
    136,428/210,474 = 210,474/x
  3. Step 3: Cross multiply
    136,428x = 210,474 × 210,474
  4. Step 4: Simplify right side
    136,428x = 44,299,304,676
  5. Step 5: Solve for x
    x = 44,299,304,676/136,428
  6. Step 6: Final answer
    x = 324,708.31

Related Problems

Find third proportional to 68,214 and 105,237
Half scale
Find third proportional to 272,856 and 420,948
Double scale
Find third proportional to 136,430 and 210,477
Similar ratio
Find third proportional to 204,642 and 315,711
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.