Home / 301.76-416.40-239.74

Finding the Fourth Proportional to 301.76, 416.40 and 239.74

Calculator

Solution

The fourth proportional to 301.76, 416.40 and 239.74 is: 330.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.76 : 416.40 = 239.74 : x
  2. Step 2: Convert to fraction form
    301.76/416.40 = 239.74/x
  3. Step 3: Cross multiply
    301.76x = 416.40 × 239.74
  4. Step 4: Simplify right side
    301.76x = 99,827.74
  5. Step 5: Solve for x
    x = 99,827.74/301.76
  6. Step 6: Final answer
    x = 330.82

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.