Home / 271,369-398,913

Finding the Third Proportional to 271,369 and 398,913

Calculator

Solution

The third proportional to 271,369 and 398,913 is: 586,402.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,369 : 398,913 = 398,913 : x
  2. Step 2: Convert to fraction form
    271,369/398,913 = 398,913/x
  3. Step 3: Cross multiply
    271,369x = 398,913 × 398,913
  4. Step 4: Simplify right side
    271,369x = 159,131,581,569
  5. Step 5: Solve for x
    x = 159,131,581,569/271,369
  6. Step 6: Final answer
    x = 586,402.95

Related Problems

Find third proportional to 135,684.50 and 199,456.50
Half scale
Find third proportional to 542,738 and 797,826
Double scale
Find third proportional to 271,371 and 398,916
Similar ratio
Find third proportional to 407,053.50 and 598,369.50
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.