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Finding the Fourth Proportional to 369.41, 554.12 and 346.86

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Solution

The fourth proportional to 369.41, 554.12 and 346.86 is: 520.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.41 : 554.12 = 346.86 : x
  2. Step 2: Convert to fraction form
    369.41/554.12 = 346.86/x
  3. Step 3: Cross multiply
    369.41x = 554.12 × 346.86
  4. Step 4: Simplify right side
    369.41x = 192,203.62
  5. Step 5: Solve for x
    x = 192,203.62/369.41
  6. Step 6: Final answer
    x = 520.29

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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.