Home / 135,930-288,366

Finding the Third Proportional to 135,930 and 288,366

Calculator

Solution

The third proportional to 135,930 and 288,366 is: 611,748.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,930 : 288,366 = 288,366 : x
  2. Step 2: Convert to fraction form
    135,930/288,366 = 288,366/x
  3. Step 3: Cross multiply
    135,930x = 288,366 × 288,366
  4. Step 4: Simplify right side
    135,930x = 83,154,949,956
  5. Step 5: Solve for x
    x = 83,154,949,956/135,930
  6. Step 6: Final answer
    x = 611,748.33

Related Problems

Find third proportional to 67,965 and 144,183
Half scale
Find third proportional to 271,860 and 576,732
Double scale
Find third proportional to 135,932 and 288,370
Similar ratio
Find third proportional to 203,895 and 432,549
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.