Home / 142,470-221,481

Finding the Third Proportional to 142,470 and 221,481

Calculator

Solution

The third proportional to 142,470 and 221,481 is: 344,309.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,470 : 221,481 = 221,481 : x
  2. Step 2: Convert to fraction form
    142,470/221,481 = 221,481/x
  3. Step 3: Cross multiply
    142,470x = 221,481 × 221,481
  4. Step 4: Simplify right side
    142,470x = 49,053,833,361
  5. Step 5: Solve for x
    x = 49,053,833,361/142,470
  6. Step 6: Final answer
    x = 344,309.91

Related Problems

Find third proportional to 71,235 and 110,740.50
Half scale
Find third proportional to 284,940 and 442,962
Double scale
Find third proportional to 142,472 and 221,484
Similar ratio
Find third proportional to 213,705 and 332,221.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.