Home / 543.38-816.75

Finding the Third Proportional to 543.38 and 816.75

Calculator

Solution

The third proportional to 543.38 and 816.75 is: 1,227.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    543.38 : 816.75 = 816.75 : x
  2. Step 2: Convert to fraction form
    543.38/816.75 = 816.75/x
  3. Step 3: Cross multiply
    543.38x = 816.75 × 816.75
  4. Step 4: Simplify right side
    543.38x = 667,080.56
  5. Step 5: Solve for x
    x = 667,080.56/543.38
  6. Step 6: Final answer
    x = 1,227.66

Related Problems

Find third proportional to 271.69 and 408.38
Half scale
Find third proportional to 1,086.75 and 1,633.50
Double scale
Find third proportional to 545 and 820
Similar ratio
Find third proportional to 815.06 and 1,225.13
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.