Home / 448.11-672.36-286.11

Finding the Fourth Proportional to 448.11, 672.36 and 286.11

Calculator

Solution

The fourth proportional to 448.11, 672.36 and 286.11 is: 429.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    448.11 : 672.36 = 286.11 : x
  2. Step 2: Convert to fraction form
    448.11/672.36 = 286.11/x
  3. Step 3: Cross multiply
    448.11x = 672.36 × 286.11
  4. Step 4: Simplify right side
    448.11x = 192,368.92
  5. Step 5: Solve for x
    x = 192,368.92/448.11
  6. Step 6: Final answer
    x = 429.29

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.