Home / 121,612-265,580

Finding the Third Proportional to 121,612 and 265,580

Calculator

Solution

The third proportional to 121,612 and 265,580 is: 579,981.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,612 : 265,580 = 265,580 : x
  2. Step 2: Convert to fraction form
    121,612/265,580 = 265,580/x
  3. Step 3: Cross multiply
    121,612x = 265,580 × 265,580
  4. Step 4: Simplify right side
    121,612x = 70,532,736,400
  5. Step 5: Solve for x
    x = 70,532,736,400/121,612
  6. Step 6: Final answer
    x = 579,981.72

Related Problems

Find third proportional to 60,806 and 132,790
Half scale
Find third proportional to 243,224 and 531,160
Double scale
Find third proportional to 121,614 and 265,584
Similar ratio
Find third proportional to 182,418 and 398,370
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.