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Finding the Fourth Proportional to 619.52, 929.52 and 376.16

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Solution

The fourth proportional to 619.52, 929.52 and 376.16 is: 564.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.52 : 929.52 = 376.16 : x
  2. Step 2: Convert to fraction form
    619.52/929.52 = 376.16/x
  3. Step 3: Cross multiply
    619.52x = 929.52 × 376.16
  4. Step 4: Simplify right side
    619.52x = 349,648.24
  5. Step 5: Solve for x
    x = 349,648.24/619.52
  6. Step 6: Final answer
    x = 564.39

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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.