Home / 204,680-315,767

Finding the Third Proportional to 204,680 and 315,767

Calculator

Solution

The third proportional to 204,680 and 315,767 is: 487,144.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,680 : 315,767 = 315,767 : x
  2. Step 2: Convert to fraction form
    204,680/315,767 = 315,767/x
  3. Step 3: Cross multiply
    204,680x = 315,767 × 315,767
  4. Step 4: Simplify right side
    204,680x = 99,708,798,289
  5. Step 5: Solve for x
    x = 99,708,798,289/204,680
  6. Step 6: Final answer
    x = 487,144.80

Related Problems

Find third proportional to 102,340 and 157,883.50
Half scale
Find third proportional to 409,360 and 631,534
Double scale
Find third proportional to 204,682 and 315,770
Similar ratio
Find third proportional to 307,020 and 473,650.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.