Home / 197,940-402,897

Finding the Third Proportional to 197,940 and 402,897

Calculator

Solution

The third proportional to 197,940 and 402,897 is: 820,076.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,940 : 402,897 = 402,897 : x
  2. Step 2: Convert to fraction form
    197,940/402,897 = 402,897/x
  3. Step 3: Cross multiply
    197,940x = 402,897 × 402,897
  4. Step 4: Simplify right side
    197,940x = 162,325,992,609
  5. Step 5: Solve for x
    x = 162,325,992,609/197,940
  6. Step 6: Final answer
    x = 820,076.75

Related Problems

Find third proportional to 98,970 and 201,448.50
Half scale
Find third proportional to 395,880 and 805,794
Double scale
Find third proportional to 197,942 and 402,901
Similar ratio
Find third proportional to 296,910 and 604,345.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.