Home / 309.86-464.84-104.45

Finding the Fourth Proportional to 309.86, 464.84 and 104.45

Calculator

Solution

The fourth proportional to 309.86, 464.84 and 104.45 is: 156.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    309.86 : 464.84 = 104.45 : x
  2. Step 2: Convert to fraction form
    309.86/464.84 = 104.45/x
  3. Step 3: Cross multiply
    309.86x = 464.84 × 104.45
  4. Step 4: Simplify right side
    309.86x = 48,549.69
  5. Step 5: Solve for x
    x = 48,549.69/309.86
  6. Step 6: Final answer
    x = 156.69

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.