Home / 206,422-315,788

Finding the Third Proportional to 206,422 and 315,788

Calculator

Solution

The third proportional to 206,422 and 315,788 is: 483,098.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,422 : 315,788 = 315,788 : x
  2. Step 2: Convert to fraction form
    206,422/315,788 = 315,788/x
  3. Step 3: Cross multiply
    206,422x = 315,788 × 315,788
  4. Step 4: Simplify right side
    206,422x = 99,722,060,944
  5. Step 5: Solve for x
    x = 99,722,060,944/206,422
  6. Step 6: Final answer
    x = 483,098.03

Related Problems

Find third proportional to 103,211 and 157,894
Half scale
Find third proportional to 412,844 and 631,576
Double scale
Find third proportional to 206,424 and 315,791
Similar ratio
Find third proportional to 309,633 and 473,682
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.