Home / 293.91-640.97

Finding the Third Proportional to 293.91 and 640.97

Calculator

Solution

The third proportional to 293.91 and 640.97 is: 1,397.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.91 : 640.97 = 640.97 : x
  2. Step 2: Convert to fraction form
    293.91/640.97 = 640.97/x
  3. Step 3: Cross multiply
    293.91x = 640.97 × 640.97
  4. Step 4: Simplify right side
    293.91x = 410,840.94
  5. Step 5: Solve for x
    x = 410,840.94/293.91
  6. Step 6: Final answer
    x = 1,397.86

Related Problems

Find third proportional to 146.95 and 320.48
Half scale
Find third proportional to 587.81 and 1,281.94
Double scale
Find third proportional to 296 and 645
Similar ratio
Find third proportional to 440.86 and 961.45
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.