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Finding the Fourth Proportional to 383,329.38, 575,021.88 and 155,515.62

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Solution

The fourth proportional to 383,329.38, 575,021.88 and 155,515.62 is: 233,284.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,329.38 : 575,021.88 = 155,515.62 : x
  2. Step 2: Convert to fraction form
    383,329.38/575,021.88 = 155,515.62/x
  3. Step 3: Cross multiply
    383,329.38x = 575,021.88 × 155,515.62
  4. Step 4: Simplify right side
    383,329.38x = 89,424,884,181.77
  5. Step 5: Solve for x
    x = 89,424,884,181.77/383,329.38
  6. Step 6: Final answer
    x = 233,284.71

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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.