Home / 207,478-329,361

Finding the Third Proportional to 207,478 and 329,361

Calculator

Solution

The third proportional to 207,478 and 329,361 is: 522,844.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,478 : 329,361 = 329,361 : x
  2. Step 2: Convert to fraction form
    207,478/329,361 = 329,361/x
  3. Step 3: Cross multiply
    207,478x = 329,361 × 329,361
  4. Step 4: Simplify right side
    207,478x = 108,478,668,321
  5. Step 5: Solve for x
    x = 108,478,668,321/207,478
  6. Step 6: Final answer
    x = 522,844.20

Related Problems

Find third proportional to 103,739 and 164,680.50
Half scale
Find third proportional to 414,956 and 658,722
Double scale
Find third proportional to 207,480 and 329,364
Similar ratio
Find third proportional to 311,217 and 494,041.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.