Home / 129,312-284,544

Finding the Third Proportional to 129,312 and 284,544

Calculator

Solution

The third proportional to 129,312 and 284,544 is: 626,123.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,312 : 284,544 = 284,544 : x
  2. Step 2: Convert to fraction form
    129,312/284,544 = 284,544/x
  3. Step 3: Cross multiply
    129,312x = 284,544 × 284,544
  4. Step 4: Simplify right side
    129,312x = 80,965,287,936
  5. Step 5: Solve for x
    x = 80,965,287,936/129,312
  6. Step 6: Final answer
    x = 626,123.55

Related Problems

Find third proportional to 64,656 and 142,272
Half scale
Find third proportional to 258,624 and 569,088
Double scale
Find third proportional to 129,314 and 284,548
Similar ratio
Find third proportional to 193,968 and 426,816
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.