Home / 80,478-176,814

Finding the Third Proportional to 80,478 and 176,814

Calculator

Solution

The third proportional to 80,478 and 176,814 is: 388,468.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,478 : 176,814 = 176,814 : x
  2. Step 2: Convert to fraction form
    80,478/176,814 = 176,814/x
  3. Step 3: Cross multiply
    80,478x = 176,814 × 176,814
  4. Step 4: Simplify right side
    80,478x = 31,263,190,596
  5. Step 5: Solve for x
    x = 31,263,190,596/80,478
  6. Step 6: Final answer
    x = 388,468.78

Related Problems

Find third proportional to 40,239 and 88,407
Half scale
Find third proportional to 160,956 and 353,628
Double scale
Find third proportional to 80,480 and 176,818
Similar ratio
Find third proportional to 120,717 and 265,221
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.