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Finding the Fourth Proportional to 396,260.40, 594,390.60 and 146,890.80

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Solution

The fourth proportional to 396,260.40, 594,390.60 and 146,890.80 is: 220,336.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,260.40 : 594,390.60 = 146,890.80 : x
  2. Step 2: Convert to fraction form
    396,260.40/594,390.60 = 146,890.80/x
  3. Step 3: Cross multiply
    396,260.40x = 594,390.60 × 146,890.80
  4. Step 4: Simplify right side
    396,260.40x = 87,310,510,746.48
  5. Step 5: Solve for x
    x = 87,310,510,746.48/396,260.40
  6. Step 6: Final answer
    x = 220,336.20

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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.