Home / 143,647-305,450

Finding the Third Proportional to 143,647 and 305,450

Calculator

Solution

The third proportional to 143,647 and 305,450 is: 649,506.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,647 : 305,450 = 305,450 : x
  2. Step 2: Convert to fraction form
    143,647/305,450 = 305,450/x
  3. Step 3: Cross multiply
    143,647x = 305,450 × 305,450
  4. Step 4: Simplify right side
    143,647x = 93,299,702,500
  5. Step 5: Solve for x
    x = 93,299,702,500/143,647
  6. Step 6: Final answer
    x = 649,506.79

Related Problems

Find third proportional to 71,823.50 and 152,725
Half scale
Find third proportional to 287,294 and 610,900
Double scale
Find third proportional to 143,649 and 305,454
Similar ratio
Find third proportional to 215,470.50 and 458,175
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.