Home / 140,808-212,408

Finding the Third Proportional to 140,808 and 212,408

Calculator

Solution

The third proportional to 140,808 and 212,408 is: 320,416.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,808 : 212,408 = 212,408 : x
  2. Step 2: Convert to fraction form
    140,808/212,408 = 212,408/x
  3. Step 3: Cross multiply
    140,808x = 212,408 × 212,408
  4. Step 4: Simplify right side
    140,808x = 45,117,158,464
  5. Step 5: Solve for x
    x = 45,117,158,464/140,808
  6. Step 6: Final answer
    x = 320,416.16

Related Problems

Find third proportional to 70,404 and 106,204
Half scale
Find third proportional to 281,616 and 424,816
Double scale
Find third proportional to 140,810 and 212,411
Similar ratio
Find third proportional to 211,212 and 318,612
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.