Home / 132.38-286.88

Finding the Third Proportional to 132.38 and 286.88

Calculator

Solution

The third proportional to 132.38 and 286.88 is: 621.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.38 : 286.88 = 286.88 : x
  2. Step 2: Convert to fraction form
    132.38/286.88 = 286.88/x
  3. Step 3: Cross multiply
    132.38x = 286.88 × 286.88
  4. Step 4: Simplify right side
    132.38x = 82,297.27
  5. Step 5: Solve for x
    x = 82,297.27/132.38
  6. Step 6: Final answer
    x = 621.70

Related Problems

Find third proportional to 66.19 and 143.44
Half scale
Find third proportional to 264.75 and 573.75
Double scale
Find third proportional to 134 and 291
Similar ratio
Find third proportional to 198.56 and 430.31
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.