Home / 553.36-763.76-320.52

Finding the Fourth Proportional to 553.36, 763.76 and 320.52

Calculator

Solution

The fourth proportional to 553.36, 763.76 and 320.52 is: 442.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.36 : 763.76 = 320.52 : x
  2. Step 2: Convert to fraction form
    553.36/763.76 = 320.52/x
  3. Step 3: Cross multiply
    553.36x = 763.76 × 320.52
  4. Step 4: Simplify right side
    553.36x = 244,800.36
  5. Step 5: Solve for x
    x = 244,800.36/553.36
  6. Step 6: Final answer
    x = 442.39

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.