Home / 213,177-307,980

Finding the Third Proportional to 213,177 and 307,980

Calculator

Solution

The third proportional to 213,177 and 307,980 is: 444,943.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,177 : 307,980 = 307,980 : x
  2. Step 2: Convert to fraction form
    213,177/307,980 = 307,980/x
  3. Step 3: Cross multiply
    213,177x = 307,980 × 307,980
  4. Step 4: Simplify right side
    213,177x = 94,851,680,400
  5. Step 5: Solve for x
    x = 94,851,680,400/213,177
  6. Step 6: Final answer
    x = 444,943.31

Related Problems

Find third proportional to 106,588.50 and 153,990
Half scale
Find third proportional to 426,354 and 615,960
Double scale
Find third proportional to 213,179 and 307,983
Similar ratio
Find third proportional to 319,765.50 and 461,970
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.