Home / 277,178-418,275

Finding the Third Proportional to 277,178 and 418,275

Calculator

Solution

The third proportional to 277,178 and 418,275 is: 631,197.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,178 : 418,275 = 418,275 : x
  2. Step 2: Convert to fraction form
    277,178/418,275 = 418,275/x
  3. Step 3: Cross multiply
    277,178x = 418,275 × 418,275
  4. Step 4: Simplify right side
    277,178x = 174,953,975,625
  5. Step 5: Solve for x
    x = 174,953,975,625/277,178
  6. Step 6: Final answer
    x = 631,197.19

Related Problems

Find third proportional to 138,589 and 209,137.50
Half scale
Find third proportional to 554,356 and 836,550
Double scale
Find third proportional to 277,180 and 418,278
Similar ratio
Find third proportional to 415,767 and 627,412.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.