Home / 173.38-259.31

Finding the Third Proportional to 173.38 and 259.31

Calculator

Solution

The third proportional to 173.38 and 259.31 is: 387.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.38 : 259.31 = 259.31 : x
  2. Step 2: Convert to fraction form
    173.38/259.31 = 259.31/x
  3. Step 3: Cross multiply
    173.38x = 259.31 × 259.31
  4. Step 4: Simplify right side
    173.38x = 67,242.97
  5. Step 5: Solve for x
    x = 67,242.97/173.38
  6. Step 6: Final answer
    x = 387.85

Related Problems

Find third proportional to 86.69 and 129.66
Half scale
Find third proportional to 346.75 and 518.63
Double scale
Find third proportional to 175 and 262
Similar ratio
Find third proportional to 260.06 and 388.97
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.