Home / 134,779-289,242

Finding the Third Proportional to 134,779 and 289,242

Calculator

Solution

The third proportional to 134,779 and 289,242 is: 620,726.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,779 : 289,242 = 289,242 : x
  2. Step 2: Convert to fraction form
    134,779/289,242 = 289,242/x
  3. Step 3: Cross multiply
    134,779x = 289,242 × 289,242
  4. Step 4: Simplify right side
    134,779x = 83,660,934,564
  5. Step 5: Solve for x
    x = 83,660,934,564/134,779
  6. Step 6: Final answer
    x = 620,726.78

Related Problems

Find third proportional to 67,389.50 and 144,621
Half scale
Find third proportional to 269,558 and 578,484
Double scale
Find third proportional to 134,781 and 289,246
Similar ratio
Find third proportional to 202,168.50 and 433,863
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.