Home / 136,912-210,354

Finding the Third Proportional to 136,912 and 210,354

Calculator

Solution

The third proportional to 136,912 and 210,354 is: 323,191.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,912 : 210,354 = 210,354 : x
  2. Step 2: Convert to fraction form
    136,912/210,354 = 210,354/x
  3. Step 3: Cross multiply
    136,912x = 210,354 × 210,354
  4. Step 4: Simplify right side
    136,912x = 44,248,805,316
  5. Step 5: Solve for x
    x = 44,248,805,316/136,912
  6. Step 6: Final answer
    x = 323,191.58

Related Problems

Find third proportional to 68,456 and 105,177
Half scale
Find third proportional to 273,824 and 420,708
Double scale
Find third proportional to 136,914 and 210,357
Similar ratio
Find third proportional to 205,368 and 315,531
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.