Home / 905.14-1,357.30-356.90

Finding the Fourth Proportional to 905.14, 1,357.30 and 356.90

Calculator

Solution

The fourth proportional to 905.14, 1,357.30 and 356.90 is: 535.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    905.14 : 1,357.30 = 356.90 : x
  2. Step 2: Convert to fraction form
    905.14/1,357.30 = 356.90/x
  3. Step 3: Cross multiply
    905.14x = 1,357.30 × 356.90
  4. Step 4: Simplify right side
    905.14x = 484,420.37
  5. Step 5: Solve for x
    x = 484,420.37/905.14
  6. Step 6: Final answer
    x = 535.19

Related Problems

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.