Home / 271,757-399,643

Finding the Third Proportional to 271,757 and 399,643

Calculator

Solution

The third proportional to 271,757 and 399,643 is: 587,710.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,757 : 399,643 = 399,643 : x
  2. Step 2: Convert to fraction form
    271,757/399,643 = 399,643/x
  3. Step 3: Cross multiply
    271,757x = 399,643 × 399,643
  4. Step 4: Simplify right side
    271,757x = 159,714,527,449
  5. Step 5: Solve for x
    x = 159,714,527,449/271,757
  6. Step 6: Final answer
    x = 587,710.81

Related Problems

Find third proportional to 135,878.50 and 199,821.50
Half scale
Find third proportional to 543,514 and 799,286
Double scale
Find third proportional to 271,759 and 399,646
Similar ratio
Find third proportional to 407,635.50 and 599,464.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.