Home / 189,940-405,304

Finding the Third Proportional to 189,940 and 405,304

Calculator

Solution

The third proportional to 189,940 and 405,304 is: 864,859.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,940 : 405,304 = 405,304 : x
  2. Step 2: Convert to fraction form
    189,940/405,304 = 405,304/x
  3. Step 3: Cross multiply
    189,940x = 405,304 × 405,304
  4. Step 4: Simplify right side
    189,940x = 164,271,332,416
  5. Step 5: Solve for x
    x = 164,271,332,416/189,940
  6. Step 6: Final answer
    x = 864,859.07

Related Problems

Find third proportional to 94,970 and 202,652
Half scale
Find third proportional to 379,880 and 810,608
Double scale
Find third proportional to 189,942 and 405,308
Similar ratio
Find third proportional to 284,910 and 607,956
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.