Home / 131,940-290,763

Finding the Third Proportional to 131,940 and 290,763

Calculator

Solution

The third proportional to 131,940 and 290,763 is: 640,769.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,940 : 290,763 = 290,763 : x
  2. Step 2: Convert to fraction form
    131,940/290,763 = 290,763/x
  3. Step 3: Cross multiply
    131,940x = 290,763 × 290,763
  4. Step 4: Simplify right side
    131,940x = 84,543,122,169
  5. Step 5: Solve for x
    x = 84,543,122,169/131,940
  6. Step 6: Final answer
    x = 640,769.46

Related Problems

Find third proportional to 65,970 and 145,381.50
Half scale
Find third proportional to 263,880 and 581,526
Double scale
Find third proportional to 131,942 and 290,767
Similar ratio
Find third proportional to 197,910 and 436,144.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.