Home / 121,358-189,958

Finding the Third Proportional to 121,358 and 189,958

Calculator

Solution

The third proportional to 121,358 and 189,958 is: 297,335.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,358 : 189,958 = 189,958 : x
  2. Step 2: Convert to fraction form
    121,358/189,958 = 189,958/x
  3. Step 3: Cross multiply
    121,358x = 189,958 × 189,958
  4. Step 4: Simplify right side
    121,358x = 36,084,041,764
  5. Step 5: Solve for x
    x = 36,084,041,764/121,358
  6. Step 6: Final answer
    x = 297,335.50

Related Problems

Find third proportional to 60,679 and 94,979
Half scale
Find third proportional to 242,716 and 379,916
Double scale
Find third proportional to 121,360 and 189,961
Similar ratio
Find third proportional to 182,037 and 284,937
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.