Home / 179,520-278,760

Finding the Third Proportional to 179,520 and 278,760

Calculator

Solution

The third proportional to 179,520 and 278,760 is: 432,860.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,520 : 278,760 = 278,760 : x
  2. Step 2: Convert to fraction form
    179,520/278,760 = 278,760/x
  3. Step 3: Cross multiply
    179,520x = 278,760 × 278,760
  4. Step 4: Simplify right side
    179,520x = 77,707,137,600
  5. Step 5: Solve for x
    x = 77,707,137,600/179,520
  6. Step 6: Final answer
    x = 432,860.61

Related Problems

Find third proportional to 89,760 and 139,380
Half scale
Find third proportional to 359,040 and 557,520
Double scale
Find third proportional to 179,522 and 278,763
Similar ratio
Find third proportional to 269,280 and 418,140
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.