Home / 276.06-380.91-188.70

Finding the Fourth Proportional to 276.06, 380.91 and 188.70

Calculator

Solution

The fourth proportional to 276.06, 380.91 and 188.70 is: 260.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.06 : 380.91 = 188.70 : x
  2. Step 2: Convert to fraction form
    276.06/380.91 = 188.70/x
  3. Step 3: Cross multiply
    276.06x = 380.91 × 188.70
  4. Step 4: Simplify right side
    276.06x = 71,877.72
  5. Step 5: Solve for x
    x = 71,877.72/276.06
  6. Step 6: Final answer
    x = 260.37

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.