Home / 206,320-278,374

Finding the Third Proportional to 206,320 and 278,374

Calculator

Solution

The third proportional to 206,320 and 278,374 is: 375,591.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,320 : 278,374 = 278,374 : x
  2. Step 2: Convert to fraction form
    206,320/278,374 = 278,374/x
  3. Step 3: Cross multiply
    206,320x = 278,374 × 278,374
  4. Step 4: Simplify right side
    206,320x = 77,492,083,876
  5. Step 5: Solve for x
    x = 77,492,083,876/206,320
  6. Step 6: Final answer
    x = 375,591.72

Related Problems

Find third proportional to 103,160 and 139,187
Half scale
Find third proportional to 412,640 and 556,748
Double scale
Find third proportional to 206,322 and 278,377
Similar ratio
Find third proportional to 309,480 and 417,561
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.