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Finding the Fourth Proportional to 379,474.62, 569,310.30 and 201,835.50

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Solution

The fourth proportional to 379,474.62, 569,310.30 and 201,835.50 is: 302,805.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,474.62 : 569,310.30 = 201,835.50 : x
  2. Step 2: Convert to fraction form
    379,474.62/569,310.30 = 201,835.50/x
  3. Step 3: Cross multiply
    379,474.62x = 569,310.30 × 201,835.50
  4. Step 4: Simplify right side
    379,474.62x = 114,907,029,055.65
  5. Step 5: Solve for x
    x = 114,907,029,055.65/379,474.62
  6. Step 6: Final answer
    x = 302,805.57

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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.