Home / 212,376-321,282

Finding the Third Proportional to 212,376 and 321,282

Calculator

Solution

The third proportional to 212,376 and 321,282 is: 486,034.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,376 : 321,282 = 321,282 : x
  2. Step 2: Convert to fraction form
    212,376/321,282 = 321,282/x
  3. Step 3: Cross multiply
    212,376x = 321,282 × 321,282
  4. Step 4: Simplify right side
    212,376x = 103,222,123,524
  5. Step 5: Solve for x
    x = 103,222,123,524/212,376
  6. Step 6: Final answer
    x = 486,034.79

Related Problems

Find third proportional to 106,188 and 160,641
Half scale
Find third proportional to 424,752 and 642,564
Double scale
Find third proportional to 212,378 and 321,285
Similar ratio
Find third proportional to 318,564 and 481,923
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.