Home / 315,262-442,375

Finding the Third Proportional to 315,262 and 442,375

Calculator

Solution

The third proportional to 315,262 and 442,375 is: 620,739.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,262 : 442,375 = 442,375 : x
  2. Step 2: Convert to fraction form
    315,262/442,375 = 442,375/x
  3. Step 3: Cross multiply
    315,262x = 442,375 × 442,375
  4. Step 4: Simplify right side
    315,262x = 195,695,640,625
  5. Step 5: Solve for x
    x = 195,695,640,625/315,262
  6. Step 6: Final answer
    x = 620,739.70

Related Problems

Find third proportional to 157,631 and 221,187.50
Half scale
Find third proportional to 630,524 and 884,750
Double scale
Find third proportional to 315,264 and 442,378
Similar ratio
Find third proportional to 472,893 and 663,562.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.