Home / 157,788-221,940

Finding the Third Proportional to 157,788 and 221,940

Calculator

Solution

The third proportional to 157,788 and 221,940 is: 312,174.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,788 : 221,940 = 221,940 : x
  2. Step 2: Convert to fraction form
    157,788/221,940 = 221,940/x
  3. Step 3: Cross multiply
    157,788x = 221,940 × 221,940
  4. Step 4: Simplify right side
    157,788x = 49,257,363,600
  5. Step 5: Solve for x
    x = 49,257,363,600/157,788
  6. Step 6: Final answer
    x = 312,174.33

Related Problems

Find third proportional to 78,894 and 110,970
Half scale
Find third proportional to 315,576 and 443,880
Double scale
Find third proportional to 157,790 and 221,943
Similar ratio
Find third proportional to 236,682 and 332,910
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.