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Finding the Fourth Proportional to 369.56, 554.26 and 126.08

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Solution

The fourth proportional to 369.56, 554.26 and 126.08 is: 189.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.56 : 554.26 = 126.08 : x
  2. Step 2: Convert to fraction form
    369.56/554.26 = 126.08/x
  3. Step 3: Cross multiply
    369.56x = 554.26 × 126.08
  4. Step 4: Simplify right side
    369.56x = 69,881.10
  5. Step 5: Solve for x
    x = 69,881.10/369.56
  6. Step 6: Final answer
    x = 189.09

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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.