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Finding the Fourth Proportional to 270,269.20, 405,469.88 and 190,462.84

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Solution

The fourth proportional to 270,269.20, 405,469.88 and 190,462.84 is: 285,740.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,269.20 : 405,469.88 = 190,462.84 : x
  2. Step 2: Convert to fraction form
    270,269.20/405,469.88 = 190,462.84/x
  3. Step 3: Cross multiply
    270,269.20x = 405,469.88 × 190,462.84
  4. Step 4: Simplify right side
    270,269.20x = 77,226,944,879.26
  5. Step 5: Solve for x
    x = 77,226,944,879.26/270,269.20
  6. Step 6: Final answer
    x = 285,740.83

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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.