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Finding the Fourth Proportional to 270,930.25, 373,879.50 and 148,421.65

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Solution

The fourth proportional to 270,930.25, 373,879.50 and 148,421.65 is: 204,819.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,930.25 : 373,879.50 = 148,421.65 : x
  2. Step 2: Convert to fraction form
    270,930.25/373,879.50 = 148,421.65/x
  3. Step 3: Cross multiply
    270,930.25x = 373,879.50 × 148,421.65
  4. Step 4: Simplify right side
    270,930.25x = 55,491,812,291.18
  5. Step 5: Solve for x
    x = 55,491,812,291.18/270,930.25
  6. Step 6: Final answer
    x = 204,819.55

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.