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Finding the Fourth Proportional to 315,958.08, 436,100.50 and 180,072.62

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Solution

The fourth proportional to 315,958.08, 436,100.50 and 180,072.62 is: 248,544.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,958.08 : 436,100.50 = 180,072.62 : x
  2. Step 2: Convert to fraction form
    315,958.08/436,100.50 = 180,072.62/x
  3. Step 3: Cross multiply
    315,958.08x = 436,100.50 × 180,072.62
  4. Step 4: Simplify right side
    315,958.08x = 78,529,759,618.31
  5. Step 5: Solve for x
    x = 78,529,759,618.31/315,958.08
  6. Step 6: Final answer
    x = 248,544.87

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Why These Related Problems?

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