Home / 156,919-342,979

Finding the Third Proportional to 156,919 and 342,979

Calculator

Solution

The third proportional to 156,919 and 342,979 is: 749,651.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,919 : 342,979 = 342,979 : x
  2. Step 2: Convert to fraction form
    156,919/342,979 = 342,979/x
  3. Step 3: Cross multiply
    156,919x = 342,979 × 342,979
  4. Step 4: Simplify right side
    156,919x = 117,634,594,441
  5. Step 5: Solve for x
    x = 117,634,594,441/156,919
  6. Step 6: Final answer
    x = 749,651.70

Related Problems

Find third proportional to 78,459.50 and 171,489.50
Half scale
Find third proportional to 313,838 and 685,958
Double scale
Find third proportional to 156,921 and 342,983
Similar ratio
Find third proportional to 235,378.50 and 514,468.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.