Home / 327,528-421,308

Finding the Third Proportional to 327,528 and 421,308

Calculator

Solution

The third proportional to 327,528 and 421,308 is: 541,939.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,528 : 421,308 = 421,308 : x
  2. Step 2: Convert to fraction form
    327,528/421,308 = 421,308/x
  3. Step 3: Cross multiply
    327,528x = 421,308 × 421,308
  4. Step 4: Simplify right side
    327,528x = 177,500,430,864
  5. Step 5: Solve for x
    x = 177,500,430,864/327,528
  6. Step 6: Final answer
    x = 541,939.71

Related Problems

Find third proportional to 163,764 and 210,654
Half scale
Find third proportional to 655,056 and 842,616
Double scale
Find third proportional to 327,530 and 421,311
Similar ratio
Find third proportional to 491,292 and 631,962
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.