Home / 139,274-305,247

Finding the Third Proportional to 139,274 and 305,247

Calculator

Solution

The third proportional to 139,274 and 305,247 is: 669,010.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,274 : 305,247 = 305,247 : x
  2. Step 2: Convert to fraction form
    139,274/305,247 = 305,247/x
  3. Step 3: Cross multiply
    139,274x = 305,247 × 305,247
  4. Step 4: Simplify right side
    139,274x = 93,175,731,009
  5. Step 5: Solve for x
    x = 93,175,731,009/139,274
  6. Step 6: Final answer
    x = 669,010.23

Related Problems

Find third proportional to 69,637 and 152,623.50
Half scale
Find third proportional to 278,548 and 610,494
Double scale
Find third proportional to 139,276 and 305,251
Similar ratio
Find third proportional to 208,911 and 457,870.50
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.