Home / 335.50-505.81-312.02

Finding the Fourth Proportional to 335.50, 505.81 and 312.02

Calculator

Solution

The fourth proportional to 335.50, 505.81 and 312.02 is: 470.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.50 : 505.81 = 312.02 : x
  2. Step 2: Convert to fraction form
    335.50/505.81 = 312.02/x
  3. Step 3: Cross multiply
    335.50x = 505.81 × 312.02
  4. Step 4: Simplify right side
    335.50x = 157,822.84
  5. Step 5: Solve for x
    x = 157,822.84/335.50
  6. Step 6: Final answer
    x = 470.41

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.