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Finding the Fourth Proportional to 369.05, 549.87 and 348.09

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Solution

The fourth proportional to 369.05, 549.87 and 348.09 is: 518.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.05 : 549.87 = 348.09 : x
  2. Step 2: Convert to fraction form
    369.05/549.87 = 348.09/x
  3. Step 3: Cross multiply
    369.05x = 549.87 × 348.09
  4. Step 4: Simplify right side
    369.05x = 191,404.25
  5. Step 5: Solve for x
    x = 191,404.25/369.05
  6. Step 6: Final answer
    x = 518.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.