Home / 128,962-182,643

Finding the Third Proportional to 128,962 and 182,643

Calculator

Solution

The third proportional to 128,962 and 182,643 is: 258,668.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,962 : 182,643 = 182,643 : x
  2. Step 2: Convert to fraction form
    128,962/182,643 = 182,643/x
  3. Step 3: Cross multiply
    128,962x = 182,643 × 182,643
  4. Step 4: Simplify right side
    128,962x = 33,358,465,449
  5. Step 5: Solve for x
    x = 33,358,465,449/128,962
  6. Step 6: Final answer
    x = 258,668.95

Related Problems

Find third proportional to 64,481 and 91,321.50
Half scale
Find third proportional to 257,924 and 365,286
Double scale
Find third proportional to 128,964 and 182,646
Similar ratio
Find third proportional to 193,443 and 273,964.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.