Home / 66,486-145,484

Finding the Third Proportional to 66,486 and 145,484

Calculator

Solution

The third proportional to 66,486 and 145,484 is: 318,346.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,486 : 145,484 = 145,484 : x
  2. Step 2: Convert to fraction form
    66,486/145,484 = 145,484/x
  3. Step 3: Cross multiply
    66,486x = 145,484 × 145,484
  4. Step 4: Simplify right side
    66,486x = 21,165,594,256
  5. Step 5: Solve for x
    x = 21,165,594,256/66,486
  6. Step 6: Final answer
    x = 318,346.63

Related Problems

Find third proportional to 33,243 and 72,742
Half scale
Find third proportional to 132,972 and 290,968
Double scale
Find third proportional to 66,488 and 145,488
Similar ratio
Find third proportional to 99,729 and 218,226
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.