Home / 214.88-494.69

Finding the Third Proportional to 214.88 and 494.69

Calculator

Solution

The third proportional to 214.88 and 494.69 is: 1,138.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    214.88 : 494.69 = 494.69 : x
  2. Step 2: Convert to fraction form
    214.88/494.69 = 494.69/x
  3. Step 3: Cross multiply
    214.88x = 494.69 × 494.69
  4. Step 4: Simplify right side
    214.88x = 244,715.72
  5. Step 5: Solve for x
    x = 244,715.72/214.88
  6. Step 6: Final answer
    x = 1,138.87

Related Problems

Find third proportional to 107.44 and 247.34
Half scale
Find third proportional to 429.75 and 989.38
Double scale
Find third proportional to 217 and 499
Similar ratio
Find third proportional to 322.31 and 742.03
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.