Home / 210,458-320,941

Finding the Third Proportional to 210,458 and 320,941

Calculator

Solution

The third proportional to 210,458 and 320,941 is: 489,423.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,458 : 320,941 = 320,941 : x
  2. Step 2: Convert to fraction form
    210,458/320,941 = 320,941/x
  3. Step 3: Cross multiply
    210,458x = 320,941 × 320,941
  4. Step 4: Simplify right side
    210,458x = 103,003,125,481
  5. Step 5: Solve for x
    x = 103,003,125,481/210,458
  6. Step 6: Final answer
    x = 489,423.66

Related Problems

Find third proportional to 105,229 and 160,470.50
Half scale
Find third proportional to 420,916 and 641,882
Double scale
Find third proportional to 210,460 and 320,944
Similar ratio
Find third proportional to 315,687 and 481,411.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.