Home / 197,280-279,146

Finding the Third Proportional to 197,280 and 279,146

Calculator

Solution

The third proportional to 197,280 and 279,146 is: 394,984.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,280 : 279,146 = 279,146 : x
  2. Step 2: Convert to fraction form
    197,280/279,146 = 279,146/x
  3. Step 3: Cross multiply
    197,280x = 279,146 × 279,146
  4. Step 4: Simplify right side
    197,280x = 77,922,489,316
  5. Step 5: Solve for x
    x = 77,922,489,316/197,280
  6. Step 6: Final answer
    x = 394,984.23

Related Problems

Find third proportional to 98,640 and 139,573
Half scale
Find third proportional to 394,560 and 558,292
Double scale
Find third proportional to 197,282 and 279,149
Similar ratio
Find third proportional to 295,920 and 418,719
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.