Home / 186,780-289,695

Finding the Third Proportional to 186,780 and 289,695

Calculator

Solution

The third proportional to 186,780 and 289,695 is: 449,315.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,780 : 289,695 = 289,695 : x
  2. Step 2: Convert to fraction form
    186,780/289,695 = 289,695/x
  3. Step 3: Cross multiply
    186,780x = 289,695 × 289,695
  4. Step 4: Simplify right side
    186,780x = 83,923,193,025
  5. Step 5: Solve for x
    x = 83,923,193,025/186,780
  6. Step 6: Final answer
    x = 449,315.74

Related Problems

Find third proportional to 93,390 and 144,847.50
Half scale
Find third proportional to 373,560 and 579,390
Double scale
Find third proportional to 186,782 and 289,698
Similar ratio
Find third proportional to 280,170 and 434,542.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.