Home / 172,278-365,400

Finding the Third Proportional to 172,278 and 365,400

Calculator

Solution

The third proportional to 172,278 and 365,400 is: 775,009.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,278 : 365,400 = 365,400 : x
  2. Step 2: Convert to fraction form
    172,278/365,400 = 365,400/x
  3. Step 3: Cross multiply
    172,278x = 365,400 × 365,400
  4. Step 4: Simplify right side
    172,278x = 133,517,160,000
  5. Step 5: Solve for x
    x = 133,517,160,000/172,278
  6. Step 6: Final answer
    x = 775,009.93

Related Problems

Find third proportional to 86,139 and 182,700
Half scale
Find third proportional to 344,556 and 730,800
Double scale
Find third proportional to 172,280 and 365,404
Similar ratio
Find third proportional to 258,417 and 548,100
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.