Home / 347.79-479.87-207.88

Finding the Fourth Proportional to 347.79, 479.87 and 207.88

Calculator

Solution

The fourth proportional to 347.79, 479.87 and 207.88 is: 286.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.79 : 479.87 = 207.88 : x
  2. Step 2: Convert to fraction form
    347.79/479.87 = 207.88/x
  3. Step 3: Cross multiply
    347.79x = 479.87 × 207.88
  4. Step 4: Simplify right side
    347.79x = 99,757.78
  5. Step 5: Solve for x
    x = 99,757.78/347.79
  6. Step 6: Final answer
    x = 286.83

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.