Home / 315,674.88-435,615.48-172,408.56

Finding the Fourth Proportional to 315,674.88, 435,615.48 and 172,408.56

Calculator

Solution

The fourth proportional to 315,674.88, 435,615.48 and 172,408.56 is: 237,915.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,674.88 : 435,615.48 = 172,408.56 : x
  2. Step 2: Convert to fraction form
    315,674.88/435,615.48 = 172,408.56/x
  3. Step 3: Cross multiply
    315,674.88x = 435,615.48 × 172,408.56
  4. Step 4: Simplify right side
    315,674.88x = 75,103,837,620.51
  5. Step 5: Solve for x
    x = 75,103,837,620.51/315,674.88
  6. Step 6: Final answer
    x = 237,915.15

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.