Home / 356.58-491.78-268.28

Finding the Fourth Proportional to 356.58, 491.78 and 268.28

Calculator

Solution

The fourth proportional to 356.58, 491.78 and 268.28 is: 370.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.58 : 491.78 = 268.28 : x
  2. Step 2: Convert to fraction form
    356.58/491.78 = 268.28/x
  3. Step 3: Cross multiply
    356.58x = 491.78 × 268.28
  4. Step 4: Simplify right side
    356.58x = 131,934.74
  5. Step 5: Solve for x
    x = 131,934.74/356.58
  6. Step 6: Final answer
    x = 370.00

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.