Home / 139,008-305,664

Finding the Third Proportional to 139,008 and 305,664

Calculator

Solution

The third proportional to 139,008 and 305,664 is: 672,123.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,008 : 305,664 = 305,664 : x
  2. Step 2: Convert to fraction form
    139,008/305,664 = 305,664/x
  3. Step 3: Cross multiply
    139,008x = 305,664 × 305,664
  4. Step 4: Simplify right side
    139,008x = 93,430,480,896
  5. Step 5: Solve for x
    x = 93,430,480,896/139,008
  6. Step 6: Final answer
    x = 672,123.05

Related Problems

Find third proportional to 69,504 and 152,832
Half scale
Find third proportional to 278,016 and 611,328
Double scale
Find third proportional to 139,010 and 305,668
Similar ratio
Find third proportional to 208,512 and 458,496
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.