Home / 236.50-418

Finding the Third Proportional to 236.50 and 418

Calculator

Solution

The third proportional to 236.50 and 418 is: 738.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.50 : 418 = 418 : x
  2. Step 2: Convert to fraction form
    236.50/418 = 418/x
  3. Step 3: Cross multiply
    236.50x = 418 × 418
  4. Step 4: Simplify right side
    236.50x = 174,724
  5. Step 5: Solve for x
    x = 174,724/236.50
  6. Step 6: Final answer
    x = 738.79

Related Problems

Find third proportional to 118.25 and 209
Half scale
Find third proportional to 473 and 836
Double scale
Find third proportional to 239 and 422
Similar ratio
Find third proportional to 354.75 and 627
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.