Home / 270.75-655.50

Finding the Third Proportional to 270.75 and 655.50

Calculator

Solution

The third proportional to 270.75 and 655.50 is: 1,587

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.75 : 655.50 = 655.50 : x
  2. Step 2: Convert to fraction form
    270.75/655.50 = 655.50/x
  3. Step 3: Cross multiply
    270.75x = 655.50 × 655.50
  4. Step 4: Simplify right side
    270.75x = 429,680.25
  5. Step 5: Solve for x
    x = 429,680.25/270.75
  6. Step 6: Final answer
    x = 1,587

Related Problems

Find third proportional to 135.38 and 327.75
Half scale
Find third proportional to 541.50 and 1,311
Double scale
Find third proportional to 273 and 660
Similar ratio
Find third proportional to 406.13 and 983.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.