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Finding the Fourth Proportional to 619.14, 929.49 and 376.14

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Solution

The fourth proportional to 619.14, 929.49 and 376.14 is: 564.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.14 : 929.49 = 376.14 : x
  2. Step 2: Convert to fraction form
    619.14/929.49 = 376.14/x
  3. Step 3: Cross multiply
    619.14x = 929.49 × 376.14
  4. Step 4: Simplify right side
    619.14x = 349,618.37
  5. Step 5: Solve for x
    x = 349,618.37/619.14
  6. Step 6: Final answer
    x = 564.68

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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.