Home / 121,286-260,812.50

Finding the Third Proportional to 121,286 and 260,812.50

Calculator

Solution

The third proportional to 121,286 and 260,812.50 is: 560,849.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,286 : 260,812.50 = 260,812.50 : x
  2. Step 2: Convert to fraction form
    121,286/260,812.50 = 260,812.50/x
  3. Step 3: Cross multiply
    121,286x = 260,812.50 × 260,812.50
  4. Step 4: Simplify right side
    121,286x = 68,023,160,156.25
  5. Step 5: Solve for x
    x = 68,023,160,156.25/121,286
  6. Step 6: Final answer
    x = 560,849.23

Related Problems

Find third proportional to 60,643 and 130,406.25
Half scale
Find third proportional to 242,572 and 521,625
Double scale
Find third proportional to 121,288 and 260,817
Similar ratio
Find third proportional to 181,929 and 391,218.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.