Home / 295.88-640.88

Finding the Third Proportional to 295.88 and 640.88

Calculator

Solution

The third proportional to 295.88 and 640.88 is: 1,388.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.88 : 640.88 = 640.88 : x
  2. Step 2: Convert to fraction form
    295.88/640.88 = 640.88/x
  3. Step 3: Cross multiply
    295.88x = 640.88 × 640.88
  4. Step 4: Simplify right side
    295.88x = 410,720.77
  5. Step 5: Solve for x
    x = 410,720.77/295.88
  6. Step 6: Final answer
    x = 1,388.16

Related Problems

Find third proportional to 147.94 and 320.44
Half scale
Find third proportional to 591.75 and 1,281.75
Double scale
Find third proportional to 298 and 645
Similar ratio
Find third proportional to 443.81 and 961.31
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.