Home / 121,257-264,540

Finding the Third Proportional to 121,257 and 264,540

Calculator

Solution

The third proportional to 121,257 and 264,540 is: 577,132.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,257 : 264,540 = 264,540 : x
  2. Step 2: Convert to fraction form
    121,257/264,540 = 264,540/x
  3. Step 3: Cross multiply
    121,257x = 264,540 × 264,540
  4. Step 4: Simplify right side
    121,257x = 69,981,411,600
  5. Step 5: Solve for x
    x = 69,981,411,600/121,257
  6. Step 6: Final answer
    x = 577,132.96

Related Problems

Find third proportional to 60,628.50 and 132,270
Half scale
Find third proportional to 242,514 and 529,080
Double scale
Find third proportional to 121,259 and 264,544
Similar ratio
Find third proportional to 181,885.50 and 396,810
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.