Home / 132,317-290,878

Finding the Third Proportional to 132,317 and 290,878

Calculator

Solution

The third proportional to 132,317 and 290,878 is: 639,449.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,317 : 290,878 = 290,878 : x
  2. Step 2: Convert to fraction form
    132,317/290,878 = 290,878/x
  3. Step 3: Cross multiply
    132,317x = 290,878 × 290,878
  4. Step 4: Simplify right side
    132,317x = 84,610,010,884
  5. Step 5: Solve for x
    x = 84,610,010,884/132,317
  6. Step 6: Final answer
    x = 639,449.28

Related Problems

Find third proportional to 66,158.50 and 145,439
Half scale
Find third proportional to 264,634 and 581,756
Double scale
Find third proportional to 132,319 and 290,882
Similar ratio
Find third proportional to 198,475.50 and 436,317
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.