Home / 158.75-247.25

Finding the Third Proportional to 158.75 and 247.25

Calculator

Solution

The third proportional to 158.75 and 247.25 is: 385.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.75 : 247.25 = 247.25 : x
  2. Step 2: Convert to fraction form
    158.75/247.25 = 247.25/x
  3. Step 3: Cross multiply
    158.75x = 247.25 × 247.25
  4. Step 4: Simplify right side
    158.75x = 61,132.56
  5. Step 5: Solve for x
    x = 61,132.56/158.75
  6. Step 6: Final answer
    x = 385.09

Related Problems

Find third proportional to 79.38 and 123.63
Half scale
Find third proportional to 317.50 and 494.50
Double scale
Find third proportional to 161 and 250
Similar ratio
Find third proportional to 238.13 and 370.88
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.