Home / 420.67-631.02-160.64

Finding the Fourth Proportional to 420.67, 631.02 and 160.64

Calculator

Solution

The fourth proportional to 420.67, 631.02 and 160.64 is: 240.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    420.67 : 631.02 = 160.64 : x
  2. Step 2: Convert to fraction form
    420.67/631.02 = 160.64/x
  3. Step 3: Cross multiply
    420.67x = 631.02 × 160.64
  4. Step 4: Simplify right side
    420.67x = 101,367.05
  5. Step 5: Solve for x
    x = 101,367.05/420.67
  6. Step 6: Final answer
    x = 240.97

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.