Home / 177,920-386,816

Finding the Third Proportional to 177,920 and 386,816

Calculator

Solution

The third proportional to 177,920 and 386,816 is: 840,976.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,920 : 386,816 = 386,816 : x
  2. Step 2: Convert to fraction form
    177,920/386,816 = 386,816/x
  3. Step 3: Cross multiply
    177,920x = 386,816 × 386,816
  4. Step 4: Simplify right side
    177,920x = 149,626,617,856
  5. Step 5: Solve for x
    x = 149,626,617,856/177,920
  6. Step 6: Final answer
    x = 840,976.94

Related Problems

Find third proportional to 88,960 and 193,408
Half scale
Find third proportional to 355,840 and 773,632
Double scale
Find third proportional to 177,922 and 386,820
Similar ratio
Find third proportional to 266,880 and 580,224
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.