Home / 376.50-405.75

Finding the Third Proportional to 376.50 and 405.75

Calculator

Solution

The third proportional to 376.50 and 405.75 is: 437.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.50 : 405.75 = 405.75 : x
  2. Step 2: Convert to fraction form
    376.50/405.75 = 405.75/x
  3. Step 3: Cross multiply
    376.50x = 405.75 × 405.75
  4. Step 4: Simplify right side
    376.50x = 164,633.06
  5. Step 5: Solve for x
    x = 164,633.06/376.50
  6. Step 6: Final answer
    x = 437.27

Related Problems

Find third proportional to 188.25 and 202.88
Half scale
Find third proportional to 753 and 811.50
Double scale
Find third proportional to 379 and 408
Similar ratio
Find third proportional to 564.75 and 608.63
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.