Home / 81,790-176,470

Finding the Third Proportional to 81,790 and 176,470

Calculator

Solution

The third proportional to 81,790 and 176,470 is: 380,751.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,790 : 176,470 = 176,470 : x
  2. Step 2: Convert to fraction form
    81,790/176,470 = 176,470/x
  3. Step 3: Cross multiply
    81,790x = 176,470 × 176,470
  4. Step 4: Simplify right side
    81,790x = 31,141,660,900
  5. Step 5: Solve for x
    x = 31,141,660,900/81,790
  6. Step 6: Final answer
    x = 380,751.45

Related Problems

Find third proportional to 40,895 and 88,235
Half scale
Find third proportional to 163,580 and 352,940
Double scale
Find third proportional to 81,792 and 176,474
Similar ratio
Find third proportional to 122,685 and 264,705
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.