Home / 203.50-275.50

Finding the Third Proportional to 203.50 and 275.50

Calculator

Solution

The third proportional to 203.50 and 275.50 is: 372.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    203.50 : 275.50 = 275.50 : x
  2. Step 2: Convert to fraction form
    203.50/275.50 = 275.50/x
  3. Step 3: Cross multiply
    203.50x = 275.50 × 275.50
  4. Step 4: Simplify right side
    203.50x = 75,900.25
  5. Step 5: Solve for x
    x = 75,900.25/203.50
  6. Step 6: Final answer
    x = 372.97

Related Problems

Find third proportional to 101.75 and 137.75
Half scale
Find third proportional to 407 and 551
Double scale
Find third proportional to 206 and 278
Similar ratio
Find third proportional to 305.25 and 413.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.