Home / 414.51-621.21-157.87

Finding the Fourth Proportional to 414.51, 621.21 and 157.87

Calculator

Solution

The fourth proportional to 414.51, 621.21 and 157.87 is: 236.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    414.51 : 621.21 = 157.87 : x
  2. Step 2: Convert to fraction form
    414.51/621.21 = 157.87/x
  3. Step 3: Cross multiply
    414.51x = 621.21 × 157.87
  4. Step 4: Simplify right side
    414.51x = 98,069.63
  5. Step 5: Solve for x
    x = 98,069.63/414.51
  6. Step 6: Final answer
    x = 236.59

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.