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Finding the Fourth Proportional to 396,300.44, 594,495.80 and 143,699.92

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Solution

The fourth proportional to 396,300.44, 594,495.80 and 143,699.92 is: 215,566.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,300.44 : 594,495.80 = 143,699.92 : x
  2. Step 2: Convert to fraction form
    396,300.44/594,495.80 = 143,699.92/x
  3. Step 3: Cross multiply
    396,300.44x = 594,495.80 × 143,699.92
  4. Step 4: Simplify right side
    396,300.44x = 85,428,998,900.34
  5. Step 5: Solve for x
    x = 85,428,998,900.34/396,300.44
  6. Step 6: Final answer
    x = 215,566.25

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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.