Home / 205,738-320,636

Finding the Third Proportional to 205,738 and 320,636

Calculator

Solution

The third proportional to 205,738 and 320,636 is: 499,700.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,738 : 320,636 = 320,636 : x
  2. Step 2: Convert to fraction form
    205,738/320,636 = 320,636/x
  3. Step 3: Cross multiply
    205,738x = 320,636 × 320,636
  4. Step 4: Simplify right side
    205,738x = 102,807,444,496
  5. Step 5: Solve for x
    x = 102,807,444,496/205,738
  6. Step 6: Final answer
    x = 499,700.81

Related Problems

Find third proportional to 102,869 and 160,318
Half scale
Find third proportional to 411,476 and 641,272
Double scale
Find third proportional to 205,740 and 320,639
Similar ratio
Find third proportional to 308,607 and 480,954
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.