Home / 131,380-203,817

Finding the Third Proportional to 131,380 and 203,817

Calculator

Solution

The third proportional to 131,380 and 203,817 is: 316,192.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,380 : 203,817 = 203,817 : x
  2. Step 2: Convert to fraction form
    131,380/203,817 = 203,817/x
  3. Step 3: Cross multiply
    131,380x = 203,817 × 203,817
  4. Step 4: Simplify right side
    131,380x = 41,541,369,489
  5. Step 5: Solve for x
    x = 41,541,369,489/131,380
  6. Step 6: Final answer
    x = 316,192.49

Related Problems

Find third proportional to 65,690 and 101,908.50
Half scale
Find third proportional to 262,760 and 407,634
Double scale
Find third proportional to 131,382 and 203,820
Similar ratio
Find third proportional to 197,070 and 305,725.50
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.