Home / 145,540-217,411

Finding the Third Proportional to 145,540 and 217,411

Calculator

Solution

The third proportional to 145,540 and 217,411 is: 324,773.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,540 : 217,411 = 217,411 : x
  2. Step 2: Convert to fraction form
    145,540/217,411 = 217,411/x
  3. Step 3: Cross multiply
    145,540x = 217,411 × 217,411
  4. Step 4: Simplify right side
    145,540x = 47,267,542,921
  5. Step 5: Solve for x
    x = 47,267,542,921/145,540
  6. Step 6: Final answer
    x = 324,773.55

Related Problems

Find third proportional to 72,770 and 108,705.50
Half scale
Find third proportional to 291,080 and 434,822
Double scale
Find third proportional to 145,542 and 217,414
Similar ratio
Find third proportional to 218,310 and 326,116.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.