Home / 131,308-191,221

Finding the Third Proportional to 131,308 and 191,221

Calculator

Solution

The third proportional to 131,308 and 191,221 is: 278,471.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,308 : 191,221 = 191,221 : x
  2. Step 2: Convert to fraction form
    131,308/191,221 = 191,221/x
  3. Step 3: Cross multiply
    131,308x = 191,221 × 191,221
  4. Step 4: Simplify right side
    131,308x = 36,565,470,841
  5. Step 5: Solve for x
    x = 36,565,470,841/131,308
  6. Step 6: Final answer
    x = 278,471.01

Related Problems

Find third proportional to 65,654 and 95,610.50
Half scale
Find third proportional to 262,616 and 382,442
Double scale
Find third proportional to 131,310 and 191,224
Similar ratio
Find third proportional to 196,962 and 286,831.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.