Home / 79,928-171,520

Finding the Third Proportional to 79,928 and 171,520

Calculator

Solution

The third proportional to 79,928 and 171,520 is: 368,070.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,928 : 171,520 = 171,520 : x
  2. Step 2: Convert to fraction form
    79,928/171,520 = 171,520/x
  3. Step 3: Cross multiply
    79,928x = 171,520 × 171,520
  4. Step 4: Simplify right side
    79,928x = 29,419,110,400
  5. Step 5: Solve for x
    x = 29,419,110,400/79,928
  6. Step 6: Final answer
    x = 368,070.14

Related Problems

Find third proportional to 39,964 and 85,760
Half scale
Find third proportional to 159,856 and 343,040
Double scale
Find third proportional to 79,930 and 171,524
Similar ratio
Find third proportional to 119,892 and 257,280
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.