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Finding the Fourth Proportional to 396,326.40, 594,489.60 and 146,956.80

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Solution

The fourth proportional to 396,326.40, 594,489.60 and 146,956.80 is: 220,435.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,326.40 : 594,489.60 = 146,956.80 : x
  2. Step 2: Convert to fraction form
    396,326.40/594,489.60 = 146,956.80/x
  3. Step 3: Cross multiply
    396,326.40x = 594,489.60 × 146,956.80
  4. Step 4: Simplify right side
    396,326.40x = 87,364,289,249.28
  5. Step 5: Solve for x
    x = 87,364,289,249.28/396,326.40
  6. Step 6: Final answer
    x = 220,435.20

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1.5x scale

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.