Home / 305.86-456.41-298.54

Finding the Fourth Proportional to 305.86, 456.41 and 298.54

Calculator

Solution

The fourth proportional to 305.86, 456.41 and 298.54 is: 445.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    305.86 : 456.41 = 298.54 : x
  2. Step 2: Convert to fraction form
    305.86/456.41 = 298.54/x
  3. Step 3: Cross multiply
    305.86x = 456.41 × 298.54
  4. Step 4: Simplify right side
    305.86x = 136,256.64
  5. Step 5: Solve for x
    x = 136,256.64/305.86
  6. Step 6: Final answer
    x = 445.49

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.