Home / 200,274-311,898

Finding the Third Proportional to 200,274 and 311,898

Calculator

Solution

The third proportional to 200,274 and 311,898 is: 485,736.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,274 : 311,898 = 311,898 : x
  2. Step 2: Convert to fraction form
    200,274/311,898 = 311,898/x
  3. Step 3: Cross multiply
    200,274x = 311,898 × 311,898
  4. Step 4: Simplify right side
    200,274x = 97,280,362,404
  5. Step 5: Solve for x
    x = 97,280,362,404/200,274
  6. Step 6: Final answer
    x = 485,736.35

Related Problems

Find third proportional to 100,137 and 155,949
Half scale
Find third proportional to 400,548 and 623,796
Double scale
Find third proportional to 200,276 and 311,901
Similar ratio
Find third proportional to 300,411 and 467,847
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.