Home / 142,636-306,728

Finding the Third Proportional to 142,636 and 306,728

Calculator

Solution

The third proportional to 142,636 and 306,728 is: 659,595.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,636 : 306,728 = 306,728 : x
  2. Step 2: Convert to fraction form
    142,636/306,728 = 306,728/x
  3. Step 3: Cross multiply
    142,636x = 306,728 × 306,728
  4. Step 4: Simplify right side
    142,636x = 94,082,065,984
  5. Step 5: Solve for x
    x = 94,082,065,984/142,636
  6. Step 6: Final answer
    x = 659,595.52

Related Problems

Find third proportional to 71,318 and 153,364
Half scale
Find third proportional to 285,272 and 613,456
Double scale
Find third proportional to 142,638 and 306,732
Similar ratio
Find third proportional to 213,954 and 460,092
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.