Home / 438.75-465.75

Finding the Third Proportional to 438.75 and 465.75

Calculator

Solution

The third proportional to 438.75 and 465.75 is: 494.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    438.75 : 465.75 = 465.75 : x
  2. Step 2: Convert to fraction form
    438.75/465.75 = 465.75/x
  3. Step 3: Cross multiply
    438.75x = 465.75 × 465.75
  4. Step 4: Simplify right side
    438.75x = 216,923.06
  5. Step 5: Solve for x
    x = 216,923.06/438.75
  6. Step 6: Final answer
    x = 494.41

Related Problems

Find third proportional to 219.38 and 232.88
Half scale
Find third proportional to 877.50 and 931.50
Double scale
Find third proportional to 441 and 468
Similar ratio
Find third proportional to 658.13 and 698.63
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.