Home / 128,366-281,532

Finding the Third Proportional to 128,366 and 281,532

Calculator

Solution

The third proportional to 128,366 and 281,532 is: 617,455.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,366 : 281,532 = 281,532 : x
  2. Step 2: Convert to fraction form
    128,366/281,532 = 281,532/x
  3. Step 3: Cross multiply
    128,366x = 281,532 × 281,532
  4. Step 4: Simplify right side
    128,366x = 79,260,267,024
  5. Step 5: Solve for x
    x = 79,260,267,024/128,366
  6. Step 6: Final answer
    x = 617,455.30

Related Problems

Find third proportional to 64,183 and 140,766
Half scale
Find third proportional to 256,732 and 563,064
Double scale
Find third proportional to 128,368 and 281,536
Similar ratio
Find third proportional to 192,549 and 422,298
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.