Home / 271.48-418.92

Finding the Third Proportional to 271.48 and 418.92

Calculator

Solution

The third proportional to 271.48 and 418.92 is: 646.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    271.48 : 418.92 = 418.92 : x
  2. Step 2: Convert to fraction form
    271.48/418.92 = 418.92/x
  3. Step 3: Cross multiply
    271.48x = 418.92 × 418.92
  4. Step 4: Simplify right side
    271.48x = 175,495.54
  5. Step 5: Solve for x
    x = 175,495.54/271.48
  6. Step 6: Final answer
    x = 646.45

Related Problems

Find third proportional to 135.74 and 209.46
Half scale
Find third proportional to 542.95 and 837.84
Double scale
Find third proportional to 273 and 422
Similar ratio
Find third proportional to 407.21 and 628.38
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.