Home / 188,600-406,720

Finding the Third Proportional to 188,600 and 406,720

Calculator

Solution

The third proportional to 188,600 and 406,720 is: 877,100.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,600 : 406,720 = 406,720 : x
  2. Step 2: Convert to fraction form
    188,600/406,720 = 406,720/x
  3. Step 3: Cross multiply
    188,600x = 406,720 × 406,720
  4. Step 4: Simplify right side
    188,600x = 165,421,158,400
  5. Step 5: Solve for x
    x = 165,421,158,400/188,600
  6. Step 6: Final answer
    x = 877,100.52

Related Problems

Find third proportional to 94,300 and 203,360
Half scale
Find third proportional to 377,200 and 813,440
Double scale
Find third proportional to 188,602 and 406,724
Similar ratio
Find third proportional to 282,900 and 610,080
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.