Home / 177,730-379,940

Finding the Third Proportional to 177,730 and 379,940

Calculator

Solution

The third proportional to 177,730 and 379,940 is: 812,211.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,730 : 379,940 = 379,940 : x
  2. Step 2: Convert to fraction form
    177,730/379,940 = 379,940/x
  3. Step 3: Cross multiply
    177,730x = 379,940 × 379,940
  4. Step 4: Simplify right side
    177,730x = 144,354,403,600
  5. Step 5: Solve for x
    x = 144,354,403,600/177,730
  6. Step 6: Final answer
    x = 812,211.80

Related Problems

Find third proportional to 88,865 and 189,970
Half scale
Find third proportional to 355,460 and 759,880
Double scale
Find third proportional to 177,732 and 379,944
Similar ratio
Find third proportional to 266,595 and 569,910
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.