Home / 64,286-139,264

Finding the Third Proportional to 64,286 and 139,264

Calculator

Solution

The third proportional to 64,286 and 139,264 is: 301,690.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,286 : 139,264 = 139,264 : x
  2. Step 2: Convert to fraction form
    64,286/139,264 = 139,264/x
  3. Step 3: Cross multiply
    64,286x = 139,264 × 139,264
  4. Step 4: Simplify right side
    64,286x = 19,394,461,696
  5. Step 5: Solve for x
    x = 19,394,461,696/64,286
  6. Step 6: Final answer
    x = 301,690.29

Related Problems

Find third proportional to 32,143 and 69,632
Half scale
Find third proportional to 128,572 and 278,528
Double scale
Find third proportional to 64,288 and 139,268
Similar ratio
Find third proportional to 96,429 and 208,896
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.