Home / 131,574-289,392

Finding the Third Proportional to 131,574 and 289,392

Calculator

Solution

The third proportional to 131,574 and 289,392 is: 636,506.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,574 : 289,392 = 289,392 : x
  2. Step 2: Convert to fraction form
    131,574/289,392 = 289,392/x
  3. Step 3: Cross multiply
    131,574x = 289,392 × 289,392
  4. Step 4: Simplify right side
    131,574x = 83,747,729,664
  5. Step 5: Solve for x
    x = 83,747,729,664/131,574
  6. Step 6: Final answer
    x = 636,506.68

Related Problems

Find third proportional to 65,787 and 144,696
Half scale
Find third proportional to 263,148 and 578,784
Double scale
Find third proportional to 131,576 and 289,396
Similar ratio
Find third proportional to 197,361 and 434,088
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.