Home / 238.99-349.56

Finding the Third Proportional to 238.99 and 349.56

Calculator

Solution

The third proportional to 238.99 and 349.56 is: 511.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.99 : 349.56 = 349.56 : x
  2. Step 2: Convert to fraction form
    238.99/349.56 = 349.56/x
  3. Step 3: Cross multiply
    238.99x = 349.56 × 349.56
  4. Step 4: Simplify right side
    238.99x = 122,191.21
  5. Step 5: Solve for x
    x = 122,191.21/238.99
  6. Step 6: Final answer
    x = 511.28

Related Problems

Find third proportional to 119.50 and 174.78
Half scale
Find third proportional to 477.98 and 699.12
Double scale
Find third proportional to 241 and 352
Similar ratio
Find third proportional to 358.49 and 524.34
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.