Home / 189,123-403,278

Finding the Third Proportional to 189,123 and 403,278

Calculator

Solution

The third proportional to 189,123 and 403,278 is: 859,933.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,123 : 403,278 = 403,278 : x
  2. Step 2: Convert to fraction form
    189,123/403,278 = 403,278/x
  3. Step 3: Cross multiply
    189,123x = 403,278 × 403,278
  4. Step 4: Simplify right side
    189,123x = 162,633,145,284
  5. Step 5: Solve for x
    x = 162,633,145,284/189,123
  6. Step 6: Final answer
    x = 859,933.19

Related Problems

Find third proportional to 94,561.50 and 201,639
Half scale
Find third proportional to 378,246 and 806,556
Double scale
Find third proportional to 189,125 and 403,282
Similar ratio
Find third proportional to 283,684.50 and 604,917
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.