Home / 243,208.75-388,522.25

Finding the Third Proportional to 243,208.75 and 388,522.25

Calculator

Solution

The third proportional to 243,208.75 and 388,522.25 is: 620,658.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,208.75 : 388,522.25 = 388,522.25 : x
  2. Step 2: Convert to fraction form
    243,208.75/388,522.25 = 388,522.25/x
  3. Step 3: Cross multiply
    243,208.75x = 388,522.25 × 388,522.25
  4. Step 4: Simplify right side
    243,208.75x = 150,949,538,745.06
  5. Step 5: Solve for x
    x = 150,949,538,745.06/243,208.75
  6. Step 6: Final answer
    x = 620,658.34

Related Problems

Find third proportional to 121,604.38 and 194,261.13
Half scale
Find third proportional to 486,417.50 and 777,044.50
Double scale
Find third proportional to 243,211 and 388,525
Similar ratio
Find third proportional to 364,813.13 and 582,783.38
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.