Home / 211.64-315.66-193.42

Finding the Fourth Proportional to 211.64, 315.66 and 193.42

Calculator

Solution

The fourth proportional to 211.64, 315.66 and 193.42 is: 288.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    211.64 : 315.66 = 193.42 : x
  2. Step 2: Convert to fraction form
    211.64/315.66 = 193.42/x
  3. Step 3: Cross multiply
    211.64x = 315.66 × 193.42
  4. Step 4: Simplify right side
    211.64x = 61,054.96
  5. Step 5: Solve for x
    x = 61,054.96/211.64
  6. Step 6: Final answer
    x = 288.48

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.