Home / 295.31-431.91

Finding the Third Proportional to 295.31 and 431.91

Calculator

Solution

The third proportional to 295.31 and 431.91 is: 631.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.31 : 431.91 = 431.91 : x
  2. Step 2: Convert to fraction form
    295.31/431.91 = 431.91/x
  3. Step 3: Cross multiply
    295.31x = 431.91 × 431.91
  4. Step 4: Simplify right side
    295.31x = 186,543.01
  5. Step 5: Solve for x
    x = 186,543.01/295.31
  6. Step 6: Final answer
    x = 631.68

Related Problems

Find third proportional to 147.66 and 215.95
Half scale
Find third proportional to 590.63 and 863.81
Double scale
Find third proportional to 297 and 435
Similar ratio
Find third proportional to 442.97 and 647.86
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.