Home / 200,533-428,127

Finding the Third Proportional to 200,533 and 428,127

Calculator

Solution

The third proportional to 200,533 and 428,127 is: 914,027.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,533 : 428,127 = 428,127 : x
  2. Step 2: Convert to fraction form
    200,533/428,127 = 428,127/x
  3. Step 3: Cross multiply
    200,533x = 428,127 × 428,127
  4. Step 4: Simplify right side
    200,533x = 183,292,728,129
  5. Step 5: Solve for x
    x = 183,292,728,129/200,533
  6. Step 6: Final answer
    x = 914,027.76

Related Problems

Find third proportional to 100,266.50 and 214,063.50
Half scale
Find third proportional to 401,066 and 856,254
Double scale
Find third proportional to 200,535 and 428,131
Similar ratio
Find third proportional to 300,799.50 and 642,190.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.