Home / 78,364-168,512

Finding the Third Proportional to 78,364 and 168,512

Calculator

Solution

The third proportional to 78,364 and 168,512 is: 362,364.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,364 : 168,512 = 168,512 : x
  2. Step 2: Convert to fraction form
    78,364/168,512 = 168,512/x
  3. Step 3: Cross multiply
    78,364x = 168,512 × 168,512
  4. Step 4: Simplify right side
    78,364x = 28,396,294,144
  5. Step 5: Solve for x
    x = 28,396,294,144/78,364
  6. Step 6: Final answer
    x = 362,364.02

Related Problems

Find third proportional to 39,182 and 84,256
Half scale
Find third proportional to 156,728 and 337,024
Double scale
Find third proportional to 78,366 and 168,516
Similar ratio
Find third proportional to 117,546 and 252,768
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.