Home / 235,128.26-324,289.40-154,638.42

Finding the Fourth Proportional to 235,128.26, 324,289.40 and 154,638.42

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Solution

The fourth proportional to 235,128.26, 324,289.40 and 154,638.42 is: 213,277.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,128.26 : 324,289.40 = 154,638.42 : x
  2. Step 2: Convert to fraction form
    235,128.26/324,289.40 = 154,638.42/x
  3. Step 3: Cross multiply
    235,128.26x = 324,289.40 × 154,638.42
  4. Step 4: Simplify right side
    235,128.26x = 50,147,600,438.75
  5. Step 5: Solve for x
    x = 50,147,600,438.75/235,128.26
  6. Step 6: Final answer
    x = 213,277.64

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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.