Home / 197,406-402,140

Finding the Third Proportional to 197,406 and 402,140

Calculator

Solution

The third proportional to 197,406 and 402,140 is: 819,208.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,406 : 402,140 = 402,140 : x
  2. Step 2: Convert to fraction form
    197,406/402,140 = 402,140/x
  3. Step 3: Cross multiply
    197,406x = 402,140 × 402,140
  4. Step 4: Simplify right side
    197,406x = 161,716,579,600
  5. Step 5: Solve for x
    x = 161,716,579,600/197,406
  6. Step 6: Final answer
    x = 819,208.03

Related Problems

Find third proportional to 98,703 and 201,070
Half scale
Find third proportional to 394,812 and 804,280
Double scale
Find third proportional to 197,408 and 402,144
Similar ratio
Find third proportional to 296,109 and 603,210
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.