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Finding the Fourth Proportional to 396,378.60, 594,658.72 and 171,776.74

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Solution

The fourth proportional to 396,378.60, 594,658.72 and 171,776.74 is: 257,704.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,378.60 : 594,658.72 = 171,776.74 : x
  2. Step 2: Convert to fraction form
    396,378.60/594,658.72 = 171,776.74/x
  3. Step 3: Cross multiply
    396,378.60x = 594,658.72 × 171,776.74
  4. Step 4: Simplify right side
    396,378.60x = 102,148,536,334.17
  5. Step 5: Solve for x
    x = 102,148,536,334.17/396,378.60
  6. Step 6: Final answer
    x = 257,704.47

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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.