Home / 208,712-279,608

Finding the Third Proportional to 208,712 and 279,608

Calculator

Solution

The third proportional to 208,712 and 279,608 is: 374,586.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,712 : 279,608 = 279,608 : x
  2. Step 2: Convert to fraction form
    208,712/279,608 = 279,608/x
  3. Step 3: Cross multiply
    208,712x = 279,608 × 279,608
  4. Step 4: Simplify right side
    208,712x = 78,180,633,664
  5. Step 5: Solve for x
    x = 78,180,633,664/208,712
  6. Step 6: Final answer
    x = 374,586.19

Related Problems

Find third proportional to 104,356 and 139,804
Half scale
Find third proportional to 417,424 and 559,216
Double scale
Find third proportional to 208,714 and 279,611
Similar ratio
Find third proportional to 313,068 and 419,412
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.