Home / 200,628-311,657

Finding the Third Proportional to 200,628 and 311,657

Calculator

Solution

The third proportional to 200,628 and 311,657 is: 484,130.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,628 : 311,657 = 311,657 : x
  2. Step 2: Convert to fraction form
    200,628/311,657 = 311,657/x
  3. Step 3: Cross multiply
    200,628x = 311,657 × 311,657
  4. Step 4: Simplify right side
    200,628x = 97,130,085,649
  5. Step 5: Solve for x
    x = 97,130,085,649/200,628
  6. Step 6: Final answer
    x = 484,130.26

Related Problems

Find third proportional to 100,314 and 155,828.50
Half scale
Find third proportional to 401,256 and 623,314
Double scale
Find third proportional to 200,630 and 311,660
Similar ratio
Find third proportional to 300,942 and 467,485.50
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.