Home / 63-156.75

Finding the Third Proportional to 63 and 156.75

Calculator

Solution

The third proportional to 63 and 156.75 is: 390.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    63 : 156.75 = 156.75 : x
  2. Step 2: Convert to fraction form
    63/156.75 = 156.75/x
  3. Step 3: Cross multiply
    63x = 156.75 × 156.75
  4. Step 4: Simplify right side
    63x = 24,570.56
  5. Step 5: Solve for x
    x = 24,570.56/63
  6. Step 6: Final answer
    x = 390.01

Related Problems

Find third proportional to 31.50 and 78.38
Half scale
Find third proportional to 126 and 313.50
Double scale
Find third proportional to 65 and 162
Similar ratio
Find third proportional to 94.50 and 235.13
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.