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Finding the Fourth Proportional to 619.55, 929.26 and 229.53

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Solution

The fourth proportional to 619.55, 929.26 and 229.53 is: 344.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.55 : 929.26 = 229.53 : x
  2. Step 2: Convert to fraction form
    619.55/929.26 = 229.53/x
  3. Step 3: Cross multiply
    619.55x = 929.26 × 229.53
  4. Step 4: Simplify right side
    619.55x = 213,293.05
  5. Step 5: Solve for x
    x = 213,293.05/619.55
  6. Step 6: Final answer
    x = 344.27

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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.