Home / 174.38-378.84

Finding the Third Proportional to 174.38 and 378.84

Calculator

Solution

The third proportional to 174.38 and 378.84 is: 823.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.38 : 378.84 = 378.84 : x
  2. Step 2: Convert to fraction form
    174.38/378.84 = 378.84/x
  3. Step 3: Cross multiply
    174.38x = 378.84 × 378.84
  4. Step 4: Simplify right side
    174.38x = 143,522.59
  5. Step 5: Solve for x
    x = 143,522.59/174.38
  6. Step 6: Final answer
    x = 823.07

Related Problems

Find third proportional to 87.19 and 189.42
Half scale
Find third proportional to 348.75 and 757.69
Double scale
Find third proportional to 176 and 383
Similar ratio
Find third proportional to 261.56 and 568.27
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.