Home / 156.75-248.25

Finding the Third Proportional to 156.75 and 248.25

Calculator

Solution

The third proportional to 156.75 and 248.25 is: 393.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    156.75 : 248.25 = 248.25 : x
  2. Step 2: Convert to fraction form
    156.75/248.25 = 248.25/x
  3. Step 3: Cross multiply
    156.75x = 248.25 × 248.25
  4. Step 4: Simplify right side
    156.75x = 61,628.06
  5. Step 5: Solve for x
    x = 61,628.06/156.75
  6. Step 6: Final answer
    x = 393.16

Related Problems

Find third proportional to 78.38 and 124.13
Half scale
Find third proportional to 313.50 and 496.50
Double scale
Find third proportional to 159 and 251
Similar ratio
Find third proportional to 235.13 and 372.38
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.