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Finding the Fourth Proportional to 601.75, 902.99 and 259.75

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Solution

The fourth proportional to 601.75, 902.99 and 259.75 is: 389.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.75 : 902.99 = 259.75 : x
  2. Step 2: Convert to fraction form
    601.75/902.99 = 259.75/x
  3. Step 3: Cross multiply
    601.75x = 902.99 × 259.75
  4. Step 4: Simplify right side
    601.75x = 234,551.65
  5. Step 5: Solve for x
    x = 234,551.65/601.75
  6. Step 6: Final answer
    x = 389.78

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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.