Home / 825.81-1,238.51-277.98

Finding the Fourth Proportional to 825.81, 1,238.51 and 277.98

Calculator

Solution

The fourth proportional to 825.81, 1,238.51 and 277.98 is: 416.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    825.81 : 1,238.51 = 277.98 : x
  2. Step 2: Convert to fraction form
    825.81/1,238.51 = 277.98/x
  3. Step 3: Cross multiply
    825.81x = 1,238.51 × 277.98
  4. Step 4: Simplify right side
    825.81x = 344,281.70
  5. Step 5: Solve for x
    x = 344,281.70/825.81
  6. Step 6: Final answer
    x = 416.90

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.