Home / 185.50-391

Finding the Third Proportional to 185.50 and 391

Calculator

Solution

The third proportional to 185.50 and 391 is: 824.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    185.50 : 391 = 391 : x
  2. Step 2: Convert to fraction form
    185.50/391 = 391/x
  3. Step 3: Cross multiply
    185.50x = 391 × 391
  4. Step 4: Simplify right side
    185.50x = 152,881
  5. Step 5: Solve for x
    x = 152,881/185.50
  6. Step 6: Final answer
    x = 824.16

Related Problems

Find third proportional to 92.75 and 195.50
Half scale
Find third proportional to 371 and 782
Double scale
Find third proportional to 188 and 395
Similar ratio
Find third proportional to 278.25 and 586.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.