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Finding the Fourth Proportional to 396,065.70, 594,098.55 and 143,467.20

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Solution

The fourth proportional to 396,065.70, 594,098.55 and 143,467.20 is: 215,200.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,065.70 : 594,098.55 = 143,467.20 : x
  2. Step 2: Convert to fraction form
    396,065.70/594,098.55 = 143,467.20/x
  3. Step 3: Cross multiply
    396,065.70x = 594,098.55 × 143,467.20
  4. Step 4: Simplify right side
    396,065.70x = 85,233,655,492.56
  5. Step 5: Solve for x
    x = 85,233,655,492.56/396,065.70
  6. Step 6: Final answer
    x = 215,200.80

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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.