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Finding the Fourth Proportional to 270,245, 405,367.50 and 73,253

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Solution

The fourth proportional to 270,245, 405,367.50 and 73,253 is: 109,879.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,245 : 405,367.50 = 73,253 : x
  2. Step 2: Convert to fraction form
    270,245/405,367.50 = 73,253/x
  3. Step 3: Cross multiply
    270,245x = 405,367.50 × 73,253
  4. Step 4: Simplify right side
    270,245x = 29,694,385,477.50
  5. Step 5: Solve for x
    x = 29,694,385,477.50/270,245
  6. Step 6: Final answer
    x = 109,879.50

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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.