Home / 383,830.72-575,811.68-131,097.34

Finding the Fourth Proportional to 383,830.72, 575,811.68 and 131,097.34

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Solution

The fourth proportional to 383,830.72, 575,811.68 and 131,097.34 is: 196,668.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,830.72 : 575,811.68 = 131,097.34 : x
  2. Step 2: Convert to fraction form
    383,830.72/575,811.68 = 131,097.34/x
  3. Step 3: Cross multiply
    383,830.72x = 575,811.68 × 131,097.34
  4. Step 4: Simplify right side
    383,830.72x = 75,487,379,588.93
  5. Step 5: Solve for x
    x = 75,487,379,588.93/383,830.72
  6. Step 6: Final answer
    x = 196,668.42

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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.