Home / 130,328-285,664

Finding the Third Proportional to 130,328 and 285,664

Calculator

Solution

The third proportional to 130,328 and 285,664 is: 626,142.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,328 : 285,664 = 285,664 : x
  2. Step 2: Convert to fraction form
    130,328/285,664 = 285,664/x
  3. Step 3: Cross multiply
    130,328x = 285,664 × 285,664
  4. Step 4: Simplify right side
    130,328x = 81,603,920,896
  5. Step 5: Solve for x
    x = 81,603,920,896/130,328
  6. Step 6: Final answer
    x = 626,142.66

Related Problems

Find third proportional to 65,164 and 142,832
Half scale
Find third proportional to 260,656 and 571,328
Double scale
Find third proportional to 130,330 and 285,668
Similar ratio
Find third proportional to 195,492 and 428,496
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.