Home / 78,828-171,264

Finding the Third Proportional to 78,828 and 171,264

Calculator

Solution

The third proportional to 78,828 and 171,264 is: 372,093.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,828 : 171,264 = 171,264 : x
  2. Step 2: Convert to fraction form
    78,828/171,264 = 171,264/x
  3. Step 3: Cross multiply
    78,828x = 171,264 × 171,264
  4. Step 4: Simplify right side
    78,828x = 29,331,357,696
  5. Step 5: Solve for x
    x = 29,331,357,696/78,828
  6. Step 6: Final answer
    x = 372,093.14

Related Problems

Find third proportional to 39,414 and 85,632
Half scale
Find third proportional to 157,656 and 342,528
Double scale
Find third proportional to 78,830 and 171,268
Similar ratio
Find third proportional to 118,242 and 256,896
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.