Home / 218,129-461,408

Finding the Third Proportional to 218,129 and 461,408

Calculator

Solution

The third proportional to 218,129 and 461,408 is: 976,015.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,129 : 461,408 = 461,408 : x
  2. Step 2: Convert to fraction form
    218,129/461,408 = 461,408/x
  3. Step 3: Cross multiply
    218,129x = 461,408 × 461,408
  4. Step 4: Simplify right side
    218,129x = 212,897,342,464
  5. Step 5: Solve for x
    x = 212,897,342,464/218,129
  6. Step 6: Final answer
    x = 976,015.76

Related Problems

Find third proportional to 109,064.50 and 230,704
Half scale
Find third proportional to 436,258 and 922,816
Double scale
Find third proportional to 218,131 and 461,412
Similar ratio
Find third proportional to 327,193.50 and 692,112
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.