Home / 78,100-170,336

Finding the Third Proportional to 78,100 and 170,336

Calculator

Solution

The third proportional to 78,100 and 170,336 is: 371,502.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,100 : 170,336 = 170,336 : x
  2. Step 2: Convert to fraction form
    78,100/170,336 = 170,336/x
  3. Step 3: Cross multiply
    78,100x = 170,336 × 170,336
  4. Step 4: Simplify right side
    78,100x = 29,014,352,896
  5. Step 5: Solve for x
    x = 29,014,352,896/78,100
  6. Step 6: Final answer
    x = 371,502.60

Related Problems

Find third proportional to 39,050 and 85,168
Half scale
Find third proportional to 156,200 and 340,672
Double scale
Find third proportional to 78,102 and 170,340
Similar ratio
Find third proportional to 117,150 and 255,504
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.