Home / 402.57-603.59-272.57

Finding the Fourth Proportional to 402.57, 603.59 and 272.57

Calculator

Solution

The fourth proportional to 402.57, 603.59 and 272.57 is: 408.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    402.57 : 603.59 = 272.57 : x
  2. Step 2: Convert to fraction form
    402.57/603.59 = 272.57/x
  3. Step 3: Cross multiply
    402.57x = 603.59 × 272.57
  4. Step 4: Simplify right side
    402.57x = 164,516.15
  5. Step 5: Solve for x
    x = 164,516.15/402.57
  6. Step 6: Final answer
    x = 408.66

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.