Home / 223.50-423.75

Finding the Third Proportional to 223.50 and 423.75

Calculator

Solution

The third proportional to 223.50 and 423.75 is: 803.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.50 : 423.75 = 423.75 : x
  2. Step 2: Convert to fraction form
    223.50/423.75 = 423.75/x
  3. Step 3: Cross multiply
    223.50x = 423.75 × 423.75
  4. Step 4: Simplify right side
    223.50x = 179,564.06
  5. Step 5: Solve for x
    x = 179,564.06/223.50
  6. Step 6: Final answer
    x = 803.42

Related Problems

Find third proportional to 111.75 and 211.88
Half scale
Find third proportional to 447 and 847.50
Double scale
Find third proportional to 226 and 428
Similar ratio
Find third proportional to 335.25 and 635.63
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.