Home / 208,990.50-312,999

Finding the Third Proportional to 208,990.50 and 312,999

Calculator

Solution

The third proportional to 208,990.50 and 312,999 is: 468,769.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,990.50 : 312,999 = 312,999 : x
  2. Step 2: Convert to fraction form
    208,990.50/312,999 = 312,999/x
  3. Step 3: Cross multiply
    208,990.50x = 312,999 × 312,999
  4. Step 4: Simplify right side
    208,990.50x = 97,968,374,001
  5. Step 5: Solve for x
    x = 97,968,374,001/208,990.50
  6. Step 6: Final answer
    x = 468,769.51

Related Problems

Find third proportional to 104,495.25 and 156,499.50
Half scale
Find third proportional to 417,981 and 625,998
Double scale
Find third proportional to 208,993 and 313,002
Similar ratio
Find third proportional to 313,485.75 and 469,498.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.