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Finding the Fourth Proportional to 369.77, 554.45 and 248.09

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Solution

The fourth proportional to 369.77, 554.45 and 248.09 is: 371.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.77 : 554.45 = 248.09 : x
  2. Step 2: Convert to fraction form
    369.77/554.45 = 248.09/x
  3. Step 3: Cross multiply
    369.77x = 554.45 × 248.09
  4. Step 4: Simplify right side
    369.77x = 137,549.49
  5. Step 5: Solve for x
    x = 137,549.49/369.77
  6. Step 6: Final answer
    x = 371.99

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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.