Home / 199,553-309,823

Finding the Third Proportional to 199,553 and 309,823

Calculator

Solution

The third proportional to 199,553 and 309,823 is: 481,026.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,553 : 309,823 = 309,823 : x
  2. Step 2: Convert to fraction form
    199,553/309,823 = 309,823/x
  3. Step 3: Cross multiply
    199,553x = 309,823 × 309,823
  4. Step 4: Simplify right side
    199,553x = 95,990,291,329
  5. Step 5: Solve for x
    x = 95,990,291,329/199,553
  6. Step 6: Final answer
    x = 481,026.55

Related Problems

Find third proportional to 99,776.50 and 154,911.50
Half scale
Find third proportional to 399,106 and 619,646
Double scale
Find third proportional to 199,555 and 309,826
Similar ratio
Find third proportional to 299,329.50 and 464,734.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.