Home / 157,212-243,621

Finding the Third Proportional to 157,212 and 243,621

Calculator

Solution

The third proportional to 157,212 and 243,621 is: 377,523.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,212 : 243,621 = 243,621 : x
  2. Step 2: Convert to fraction form
    157,212/243,621 = 243,621/x
  3. Step 3: Cross multiply
    157,212x = 243,621 × 243,621
  4. Step 4: Simplify right side
    157,212x = 59,351,191,641
  5. Step 5: Solve for x
    x = 59,351,191,641/157,212
  6. Step 6: Final answer
    x = 377,523.29

Related Problems

Find third proportional to 78,606 and 121,810.50
Half scale
Find third proportional to 314,424 and 487,242
Double scale
Find third proportional to 157,214 and 243,624
Similar ratio
Find third proportional to 235,818 and 365,431.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.