Home / 511.63-706.06-278.77

Finding the Fourth Proportional to 511.63, 706.06 and 278.77

Calculator

Solution

The fourth proportional to 511.63, 706.06 and 278.77 is: 384.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    511.63 : 706.06 = 278.77 : x
  2. Step 2: Convert to fraction form
    511.63/706.06 = 278.77/x
  3. Step 3: Cross multiply
    511.63x = 706.06 × 278.77
  4. Step 4: Simplify right side
    511.63x = 196,824.82
  5. Step 5: Solve for x
    x = 196,824.82/511.63
  6. Step 6: Final answer
    x = 384.71

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.