Home / 193,720-421,744

Finding the Third Proportional to 193,720 and 421,744

Calculator

Solution

The third proportional to 193,720 and 421,744 is: 918,170.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,720 : 421,744 = 421,744 : x
  2. Step 2: Convert to fraction form
    193,720/421,744 = 421,744/x
  3. Step 3: Cross multiply
    193,720x = 421,744 × 421,744
  4. Step 4: Simplify right side
    193,720x = 177,868,001,536
  5. Step 5: Solve for x
    x = 177,868,001,536/193,720
  6. Step 6: Final answer
    x = 918,170.56

Related Problems

Find third proportional to 96,860 and 210,872
Half scale
Find third proportional to 387,440 and 843,488
Double scale
Find third proportional to 193,722 and 421,748
Similar ratio
Find third proportional to 290,580 and 632,616
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.