Home / 245,520-379,128

Finding the Third Proportional to 245,520 and 379,128

Calculator

Solution

The third proportional to 245,520 and 379,128 is: 585,443.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,520 : 379,128 = 379,128 : x
  2. Step 2: Convert to fraction form
    245,520/379,128 = 379,128/x
  3. Step 3: Cross multiply
    245,520x = 379,128 × 379,128
  4. Step 4: Simplify right side
    245,520x = 143,738,040,384
  5. Step 5: Solve for x
    x = 143,738,040,384/245,520
  6. Step 6: Final answer
    x = 585,443.31

Related Problems

Find third proportional to 122,760 and 189,564
Half scale
Find third proportional to 491,040 and 758,256
Double scale
Find third proportional to 245,522 and 379,131
Similar ratio
Find third proportional to 368,280 and 568,692
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.