Home / 138,165-305,373

Finding the Third Proportional to 138,165 and 305,373

Calculator

Solution

The third proportional to 138,165 and 305,373 is: 674,936.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,165 : 305,373 = 305,373 : x
  2. Step 2: Convert to fraction form
    138,165/305,373 = 305,373/x
  3. Step 3: Cross multiply
    138,165x = 305,373 × 305,373
  4. Step 4: Simplify right side
    138,165x = 93,252,669,129
  5. Step 5: Solve for x
    x = 93,252,669,129/138,165
  6. Step 6: Final answer
    x = 674,936.99

Related Problems

Find third proportional to 69,082.50 and 152,686.50
Half scale
Find third proportional to 276,330 and 610,746
Double scale
Find third proportional to 138,167 and 305,377
Similar ratio
Find third proportional to 207,247.50 and 458,059.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.