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Finding the Fourth Proportional to 493,137.12, 739,790.08 and 156,171.44

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Solution

The fourth proportional to 493,137.12, 739,790.08 and 156,171.44 is: 234,283.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,137.12 : 739,790.08 = 156,171.44 : x
  2. Step 2: Convert to fraction form
    493,137.12/739,790.08 = 156,171.44/x
  3. Step 3: Cross multiply
    493,137.12x = 739,790.08 × 156,171.44
  4. Step 4: Simplify right side
    493,137.12x = 115,534,082,091.32
  5. Step 5: Solve for x
    x = 115,534,082,091.32/493,137.12
  6. Step 6: Final answer
    x = 234,283.89

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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.