Home / 245.50-346.75

Finding the Third Proportional to 245.50 and 346.75

Calculator

Solution

The third proportional to 245.50 and 346.75 is: 489.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.50 : 346.75 = 346.75 : x
  2. Step 2: Convert to fraction form
    245.50/346.75 = 346.75/x
  3. Step 3: Cross multiply
    245.50x = 346.75 × 346.75
  4. Step 4: Simplify right side
    245.50x = 120,235.56
  5. Step 5: Solve for x
    x = 120,235.56/245.50
  6. Step 6: Final answer
    x = 489.76

Related Problems

Find third proportional to 122.75 and 173.38
Half scale
Find third proportional to 491 and 693.50
Double scale
Find third proportional to 248 and 350
Similar ratio
Find third proportional to 368.25 and 520.13
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.