Home / 157.25-247

Finding the Third Proportional to 157.25 and 247

Calculator

Solution

The third proportional to 157.25 and 247 is: 387.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    157.25 : 247 = 247 : x
  2. Step 2: Convert to fraction form
    157.25/247 = 247/x
  3. Step 3: Cross multiply
    157.25x = 247 × 247
  4. Step 4: Simplify right side
    157.25x = 61,009
  5. Step 5: Solve for x
    x = 61,009/157.25
  6. Step 6: Final answer
    x = 387.97

Related Problems

Find third proportional to 78.63 and 123.50
Half scale
Find third proportional to 314.50 and 494
Double scale
Find third proportional to 159 and 250
Similar ratio
Find third proportional to 235.88 and 370.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.