Home / 457.83-686.86-149.70

Finding the Fourth Proportional to 457.83, 686.86 and 149.70

Calculator

Solution

The fourth proportional to 457.83, 686.86 and 149.70 is: 224.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    457.83 : 686.86 = 149.70 : x
  2. Step 2: Convert to fraction form
    457.83/686.86 = 149.70/x
  3. Step 3: Cross multiply
    457.83x = 686.86 × 149.70
  4. Step 4: Simplify right side
    457.83x = 102,822.94
  5. Step 5: Solve for x
    x = 102,822.94/457.83
  6. Step 6: Final answer
    x = 224.59

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.