Home / 255,751-387,180

Finding the Third Proportional to 255,751 and 387,180

Calculator

Solution

The third proportional to 255,751 and 387,180 is: 586,149.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,751 : 387,180 = 387,180 : x
  2. Step 2: Convert to fraction form
    255,751/387,180 = 387,180/x
  3. Step 3: Cross multiply
    255,751x = 387,180 × 387,180
  4. Step 4: Simplify right side
    255,751x = 149,908,352,400
  5. Step 5: Solve for x
    x = 149,908,352,400/255,751
  6. Step 6: Final answer
    x = 586,149.62

Related Problems

Find third proportional to 127,875.50 and 193,590
Half scale
Find third proportional to 511,502 and 774,360
Double scale
Find third proportional to 255,753 and 387,183
Similar ratio
Find third proportional to 383,626.50 and 580,770
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.