Home / 78,290-171,344

Finding the Third Proportional to 78,290 and 171,344

Calculator

Solution

The third proportional to 78,290 and 171,344 is: 375,000.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,290 : 171,344 = 171,344 : x
  2. Step 2: Convert to fraction form
    78,290/171,344 = 171,344/x
  3. Step 3: Cross multiply
    78,290x = 171,344 × 171,344
  4. Step 4: Simplify right side
    78,290x = 29,358,766,336
  5. Step 5: Solve for x
    x = 29,358,766,336/78,290
  6. Step 6: Final answer
    x = 375,000.21

Related Problems

Find third proportional to 39,145 and 85,672
Half scale
Find third proportional to 156,580 and 342,688
Double scale
Find third proportional to 78,292 and 171,348
Similar ratio
Find third proportional to 117,435 and 257,016
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.