Home / 364.78-556.45

Finding the Third Proportional to 364.78 and 556.45

Calculator

Solution

The third proportional to 364.78 and 556.45 is: 848.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.78 : 556.45 = 556.45 : x
  2. Step 2: Convert to fraction form
    364.78/556.45 = 556.45/x
  3. Step 3: Cross multiply
    364.78x = 556.45 × 556.45
  4. Step 4: Simplify right side
    364.78x = 309,640.08
  5. Step 5: Solve for x
    x = 309,640.08/364.78
  6. Step 6: Final answer
    x = 848.84

Related Problems

Find third proportional to 182.39 and 278.23
Half scale
Find third proportional to 729.56 and 1,112.91
Double scale
Find third proportional to 367 and 560
Similar ratio
Find third proportional to 547.17 and 834.68
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.