Home / 185-317

Finding the Third Proportional to 185 and 317

Calculator

Solution

The third proportional to 185 and 317 is: 543.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    185 : 317 = 317 : x
  2. Step 2: Convert to fraction form
    185/317 = 317/x
  3. Step 3: Cross multiply
    185x = 317 × 317
  4. Step 4: Simplify right side
    185x = 100,489
  5. Step 5: Solve for x
    x = 100,489/185
  6. Step 6: Final answer
    x = 543.18

Related Problems

Find third proportional to 92.50 and 158.50
Half scale
Find third proportional to 370 and 634
Double scale
Find third proportional to 187 and 320
Similar ratio
Find third proportional to 277.50 and 475.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.71) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.