Home / 259.60-389.36-97.28

Finding the Fourth Proportional to 259.60, 389.36 and 97.28

Calculator

Solution

The fourth proportional to 259.60, 389.36 and 97.28 is: 145.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    259.60 : 389.36 = 97.28 : x
  2. Step 2: Convert to fraction form
    259.60/389.36 = 97.28/x
  3. Step 3: Cross multiply
    259.60x = 389.36 × 97.28
  4. Step 4: Simplify right side
    259.60x = 37,876.94
  5. Step 5: Solve for x
    x = 37,876.94/259.60
  6. Step 6: Final answer
    x = 145.91

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.