Home / 253,461-394,731

Finding the Third Proportional to 253,461 and 394,731

Calculator

Solution

The third proportional to 253,461 and 394,731 is: 614,739.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,461 : 394,731 = 394,731 : x
  2. Step 2: Convert to fraction form
    253,461/394,731 = 394,731/x
  3. Step 3: Cross multiply
    253,461x = 394,731 × 394,731
  4. Step 4: Simplify right side
    253,461x = 155,812,562,361
  5. Step 5: Solve for x
    x = 155,812,562,361/253,461
  6. Step 6: Final answer
    x = 614,739.79

Related Problems

Find third proportional to 126,730.50 and 197,365.50
Half scale
Find third proportional to 506,922 and 789,462
Double scale
Find third proportional to 253,463 and 394,734
Similar ratio
Find third proportional to 380,191.50 and 592,096.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.