Home / 155,611.50-220,205.25

Finding the Third Proportional to 155,611.50 and 220,205.25

Calculator

Solution

The third proportional to 155,611.50 and 220,205.25 is: 311,611.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,611.50 : 220,205.25 = 220,205.25 : x
  2. Step 2: Convert to fraction form
    155,611.50/220,205.25 = 220,205.25/x
  3. Step 3: Cross multiply
    155,611.50x = 220,205.25 × 220,205.25
  4. Step 4: Simplify right side
    155,611.50x = 48,490,352,127.56
  5. Step 5: Solve for x
    x = 48,490,352,127.56/155,611.50
  6. Step 6: Final answer
    x = 311,611.62

Related Problems

Find third proportional to 77,805.75 and 110,102.63
Half scale
Find third proportional to 311,223 and 440,410.50
Double scale
Find third proportional to 155,614 and 220,208
Similar ratio
Find third proportional to 233,417.25 and 330,307.88
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.