Home / 356.68-535.54-220.30

Finding the Fourth Proportional to 356.68, 535.54 and 220.30

Calculator

Solution

The fourth proportional to 356.68, 535.54 and 220.30 is: 330.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.68 : 535.54 = 220.30 : x
  2. Step 2: Convert to fraction form
    356.68/535.54 = 220.30/x
  3. Step 3: Cross multiply
    356.68x = 535.54 × 220.30
  4. Step 4: Simplify right side
    356.68x = 117,979.46
  5. Step 5: Solve for x
    x = 117,979.46/356.68
  6. Step 6: Final answer
    x = 330.77

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.