Home / 278.34-384-200.58

Finding the Fourth Proportional to 278.34, 384 and 200.58

Calculator

Solution

The fourth proportional to 278.34, 384 and 200.58 is: 276.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    278.34 : 384 = 200.58 : x
  2. Step 2: Convert to fraction form
    278.34/384 = 200.58/x
  3. Step 3: Cross multiply
    278.34x = 384 × 200.58
  4. Step 4: Simplify right side
    278.34x = 77,022.72
  5. Step 5: Solve for x
    x = 77,022.72/278.34
  6. Step 6: Final answer
    x = 276.72

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.