Home / 207,328-320,155

Finding the Third Proportional to 207,328 and 320,155

Calculator

Solution

The third proportional to 207,328 and 320,155 is: 494,381.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,328 : 320,155 = 320,155 : x
  2. Step 2: Convert to fraction form
    207,328/320,155 = 320,155/x
  3. Step 3: Cross multiply
    207,328x = 320,155 × 320,155
  4. Step 4: Simplify right side
    207,328x = 102,499,224,025
  5. Step 5: Solve for x
    x = 102,499,224,025/207,328
  6. Step 6: Final answer
    x = 494,381.96

Related Problems

Find third proportional to 103,664 and 160,077.50
Half scale
Find third proportional to 414,656 and 640,310
Double scale
Find third proportional to 207,330 and 320,158
Similar ratio
Find third proportional to 310,992 and 480,232.50
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.