Home / 120,828-259,152

Finding the Third Proportional to 120,828 and 259,152

Calculator

Solution

The third proportional to 120,828 and 259,152 is: 555,829.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,828 : 259,152 = 259,152 : x
  2. Step 2: Convert to fraction form
    120,828/259,152 = 259,152/x
  3. Step 3: Cross multiply
    120,828x = 259,152 × 259,152
  4. Step 4: Simplify right side
    120,828x = 67,159,759,104
  5. Step 5: Solve for x
    x = 67,159,759,104/120,828
  6. Step 6: Final answer
    x = 555,829.44

Related Problems

Find third proportional to 60,414 and 129,576
Half scale
Find third proportional to 241,656 and 518,304
Double scale
Find third proportional to 120,830 and 259,156
Similar ratio
Find third proportional to 181,242 and 388,728
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.