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Finding the Fourth Proportional to 605.60, 908.72 and 349.60

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Solution

The fourth proportional to 605.60, 908.72 and 349.60 is: 524.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.60 : 908.72 = 349.60 : x
  2. Step 2: Convert to fraction form
    605.60/908.72 = 349.60/x
  3. Step 3: Cross multiply
    605.60x = 908.72 × 349.60
  4. Step 4: Simplify right side
    605.60x = 317,688.51
  5. Step 5: Solve for x
    x = 317,688.51/605.60
  6. Step 6: Final answer
    x = 524.58

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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.