Home / 611.36-916.88-286.08

Finding the Fourth Proportional to 611.36, 916.88 and 286.08

Calculator

Solution

The fourth proportional to 611.36, 916.88 and 286.08 is: 429.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    611.36 : 916.88 = 286.08 : x
  2. Step 2: Convert to fraction form
    611.36/916.88 = 286.08/x
  3. Step 3: Cross multiply
    611.36x = 916.88 × 286.08
  4. Step 4: Simplify right side
    611.36x = 262,301.03
  5. Step 5: Solve for x
    x = 262,301.03/611.36
  6. Step 6: Final answer
    x = 429.05

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.