Home / 145,728-219,636

Finding the Third Proportional to 145,728 and 219,636

Calculator

Solution

The third proportional to 145,728 and 219,636 is: 331,027.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,728 : 219,636 = 219,636 : x
  2. Step 2: Convert to fraction form
    145,728/219,636 = 219,636/x
  3. Step 3: Cross multiply
    145,728x = 219,636 × 219,636
  4. Step 4: Simplify right side
    145,728x = 48,239,972,496
  5. Step 5: Solve for x
    x = 48,239,972,496/145,728
  6. Step 6: Final answer
    x = 331,027.48

Related Problems

Find third proportional to 72,864 and 109,818
Half scale
Find third proportional to 291,456 and 439,272
Double scale
Find third proportional to 145,730 and 219,639
Similar ratio
Find third proportional to 218,592 and 329,454
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.