Home / 203,634-421,236

Finding the Third Proportional to 203,634 and 421,236

Calculator

Solution

The third proportional to 203,634 and 421,236 is: 871,366.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,634 : 421,236 = 421,236 : x
  2. Step 2: Convert to fraction form
    203,634/421,236 = 421,236/x
  3. Step 3: Cross multiply
    203,634x = 421,236 × 421,236
  4. Step 4: Simplify right side
    203,634x = 177,439,767,696
  5. Step 5: Solve for x
    x = 177,439,767,696/203,634
  6. Step 6: Final answer
    x = 871,366.12

Related Problems

Find third proportional to 101,817 and 210,618
Half scale
Find third proportional to 407,268 and 842,472
Double scale
Find third proportional to 203,636 and 421,240
Similar ratio
Find third proportional to 305,451 and 631,854
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.