Home / 252,221-385,720

Finding the Third Proportional to 252,221 and 385,720

Calculator

Solution

The third proportional to 252,221 and 385,720 is: 589,879.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,221 : 385,720 = 385,720 : x
  2. Step 2: Convert to fraction form
    252,221/385,720 = 385,720/x
  3. Step 3: Cross multiply
    252,221x = 385,720 × 385,720
  4. Step 4: Simplify right side
    252,221x = 148,779,918,400
  5. Step 5: Solve for x
    x = 148,779,918,400/252,221
  6. Step 6: Final answer
    x = 589,879.19

Related Problems

Find third proportional to 126,110.50 and 192,860
Half scale
Find third proportional to 504,442 and 771,440
Double scale
Find third proportional to 252,223 and 385,723
Similar ratio
Find third proportional to 378,331.50 and 578,580
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.