Home / 200,351-312,015

Finding the Third Proportional to 200,351 and 312,015

Calculator

Solution

The third proportional to 200,351 and 312,015 is: 485,914.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,351 : 312,015 = 312,015 : x
  2. Step 2: Convert to fraction form
    200,351/312,015 = 312,015/x
  3. Step 3: Cross multiply
    200,351x = 312,015 × 312,015
  4. Step 4: Simplify right side
    200,351x = 97,353,360,225
  5. Step 5: Solve for x
    x = 97,353,360,225/200,351
  6. Step 6: Final answer
    x = 485,914.02

Related Problems

Find third proportional to 100,175.50 and 156,007.50
Half scale
Find third proportional to 400,702 and 624,030
Double scale
Find third proportional to 200,353 and 312,018
Similar ratio
Find third proportional to 300,526.50 and 468,022.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.