Home / 121,142-265,578

Finding the Third Proportional to 121,142 and 265,578

Calculator

Solution

The third proportional to 121,142 and 265,578 is: 582,223.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,142 : 265,578 = 265,578 : x
  2. Step 2: Convert to fraction form
    121,142/265,578 = 265,578/x
  3. Step 3: Cross multiply
    121,142x = 265,578 × 265,578
  4. Step 4: Simplify right side
    121,142x = 70,531,674,084
  5. Step 5: Solve for x
    x = 70,531,674,084/121,142
  6. Step 6: Final answer
    x = 582,223.13

Related Problems

Find third proportional to 60,571 and 132,789
Half scale
Find third proportional to 242,284 and 531,156
Double scale
Find third proportional to 121,144 and 265,582
Similar ratio
Find third proportional to 181,713 and 398,367
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.