Home / 257,438.90-355,207.74-155,480.96

Finding the Fourth Proportional to 257,438.90, 355,207.74 and 155,480.96

Calculator

Solution

The fourth proportional to 257,438.90, 355,207.74 and 155,480.96 is: 214,528.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,438.90 : 355,207.74 = 155,480.96 : x
  2. Step 2: Convert to fraction form
    257,438.90/355,207.74 = 155,480.96/x
  3. Step 3: Cross multiply
    257,438.90x = 355,207.74 × 155,480.96
  4. Step 4: Simplify right side
    257,438.90x = 55,228,040,414.63
  5. Step 5: Solve for x
    x = 55,228,040,414.63/257,438.90
  6. Step 6: Final answer
    x = 214,528.73

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.