Home / 121,490-262,948

Finding the Third Proportional to 121,490 and 262,948

Calculator

Solution

The third proportional to 121,490 and 262,948 is: 569,113.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,490 : 262,948 = 262,948 : x
  2. Step 2: Convert to fraction form
    121,490/262,948 = 262,948/x
  3. Step 3: Cross multiply
    121,490x = 262,948 × 262,948
  4. Step 4: Simplify right side
    121,490x = 69,141,650,704
  5. Step 5: Solve for x
    x = 69,141,650,704/121,490
  6. Step 6: Final answer
    x = 569,113.92

Related Problems

Find third proportional to 60,745 and 131,474
Half scale
Find third proportional to 242,980 and 525,896
Double scale
Find third proportional to 121,492 and 262,952
Similar ratio
Find third proportional to 182,235 and 394,422
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.