Home / 307.70-424.14-242.12

Finding the Fourth Proportional to 307.70, 424.14 and 242.12

Calculator

Solution

The fourth proportional to 307.70, 424.14 and 242.12 is: 333.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    307.70 : 424.14 = 242.12 : x
  2. Step 2: Convert to fraction form
    307.70/424.14 = 242.12/x
  3. Step 3: Cross multiply
    307.70x = 424.14 × 242.12
  4. Step 4: Simplify right side
    307.70x = 102,692.78
  5. Step 5: Solve for x
    x = 102,692.78/307.70
  6. Step 6: Final answer
    x = 333.74

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.