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Finding the Fourth Proportional to 437.62, 603.86 and 251.09

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Solution

The fourth proportional to 437.62, 603.86 and 251.09 is: 346.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.62 : 603.86 = 251.09 : x
  2. Step 2: Convert to fraction form
    437.62/603.86 = 251.09/x
  3. Step 3: Cross multiply
    437.62x = 603.86 × 251.09
  4. Step 4: Simplify right side
    437.62x = 151,618.93
  5. Step 5: Solve for x
    x = 151,618.93/437.62
  6. Step 6: Final answer
    x = 346.47

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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.