Home / 357.89-493.87-202.64

Finding the Fourth Proportional to 357.89, 493.87 and 202.64

Calculator

Solution

The fourth proportional to 357.89, 493.87 and 202.64 is: 279.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.89 : 493.87 = 202.64 : x
  2. Step 2: Convert to fraction form
    357.89/493.87 = 202.64/x
  3. Step 3: Cross multiply
    357.89x = 493.87 × 202.64
  4. Step 4: Simplify right side
    357.89x = 100,077.82
  5. Step 5: Solve for x
    x = 100,077.82/357.89
  6. Step 6: Final answer
    x = 279.63

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.