Home / 263.16-418.88

Finding the Third Proportional to 263.16 and 418.88

Calculator

Solution

The third proportional to 263.16 and 418.88 is: 666.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.16 : 418.88 = 418.88 : x
  2. Step 2: Convert to fraction form
    263.16/418.88 = 418.88/x
  3. Step 3: Cross multiply
    263.16x = 418.88 × 418.88
  4. Step 4: Simplify right side
    263.16x = 175,456.27
  5. Step 5: Solve for x
    x = 175,456.27/263.16
  6. Step 6: Final answer
    x = 666.74

Related Problems

Find third proportional to 131.58 and 209.44
Half scale
Find third proportional to 526.31 and 837.75
Double scale
Find third proportional to 265 and 422
Similar ratio
Find third proportional to 394.73 and 628.31
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.