Home / 222,721-485,642

Finding the Third Proportional to 222,721 and 485,642

Calculator

Solution

The third proportional to 222,721 and 485,642 is: 1,058,939.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,721 : 485,642 = 485,642 : x
  2. Step 2: Convert to fraction form
    222,721/485,642 = 485,642/x
  3. Step 3: Cross multiply
    222,721x = 485,642 × 485,642
  4. Step 4: Simplify right side
    222,721x = 235,848,152,164
  5. Step 5: Solve for x
    x = 235,848,152,164/222,721
  6. Step 6: Final answer
    x = 1,058,939.89

Related Problems

Find third proportional to 111,360.50 and 242,821
Half scale
Find third proportional to 445,442 and 971,284
Double scale
Find third proportional to 222,723 and 485,646
Similar ratio
Find third proportional to 334,081.50 and 728,463
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.