Home / 122,660-286,642

Finding the Third Proportional to 122,660 and 286,642

Calculator

Solution

The third proportional to 122,660 and 286,642 is: 669,848.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,660 : 286,642 = 286,642 : x
  2. Step 2: Convert to fraction form
    122,660/286,642 = 286,642/x
  3. Step 3: Cross multiply
    122,660x = 286,642 × 286,642
  4. Step 4: Simplify right side
    122,660x = 82,163,636,164
  5. Step 5: Solve for x
    x = 82,163,636,164/122,660
  6. Step 6: Final answer
    x = 669,848.66

Related Problems

Find third proportional to 61,330 and 143,321
Half scale
Find third proportional to 245,320 and 573,284
Double scale
Find third proportional to 122,662 and 286,647
Similar ratio
Find third proportional to 183,990 and 429,963
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.