Home / 131-236

Finding the Third Proportional to 131 and 236

Calculator

Solution

The third proportional to 131 and 236 is: 425.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    131 : 236 = 236 : x
  2. Step 2: Convert to fraction form
    131/236 = 236/x
  3. Step 3: Cross multiply
    131x = 236 × 236
  4. Step 4: Simplify right side
    131x = 55,696
  5. Step 5: Solve for x
    x = 55,696/131
  6. Step 6: Final answer
    x = 425.16

Related Problems

Find third proportional to 65.50 and 118
Half scale
Find third proportional to 262 and 472
Double scale
Find third proportional to 133 and 240
Similar ratio
Find third proportional to 196.50 and 354
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.80) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.