Home / 77,518-172,568

Finding the Third Proportional to 77,518 and 172,568

Calculator

Solution

The third proportional to 77,518 and 172,568 is: 384,165.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,518 : 172,568 = 172,568 : x
  2. Step 2: Convert to fraction form
    77,518/172,568 = 172,568/x
  3. Step 3: Cross multiply
    77,518x = 172,568 × 172,568
  4. Step 4: Simplify right side
    77,518x = 29,779,714,624
  5. Step 5: Solve for x
    x = 29,779,714,624/77,518
  6. Step 6: Final answer
    x = 384,165.16

Related Problems

Find third proportional to 38,759 and 86,284
Half scale
Find third proportional to 155,036 and 345,136
Double scale
Find third proportional to 77,520 and 172,572
Similar ratio
Find third proportional to 116,277 and 258,852
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.