Home / 129,816-200,784

Finding the Third Proportional to 129,816 and 200,784

Calculator

Solution

The third proportional to 129,816 and 200,784 is: 310,548.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,816 : 200,784 = 200,784 : x
  2. Step 2: Convert to fraction form
    129,816/200,784 = 200,784/x
  3. Step 3: Cross multiply
    129,816x = 200,784 × 200,784
  4. Step 4: Simplify right side
    129,816x = 40,314,214,656
  5. Step 5: Solve for x
    x = 40,314,214,656/129,816
  6. Step 6: Final answer
    x = 310,548.89

Related Problems

Find third proportional to 64,908 and 100,392
Half scale
Find third proportional to 259,632 and 401,568
Double scale
Find third proportional to 129,818 and 200,787
Similar ratio
Find third proportional to 194,724 and 301,176
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.