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Finding the Fourth Proportional to 605.15, 908.75 and 375.39

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Solution

The fourth proportional to 605.15, 908.75 and 375.39 is: 563.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.15 : 908.75 = 375.39 : x
  2. Step 2: Convert to fraction form
    605.15/908.75 = 375.39/x
  3. Step 3: Cross multiply
    605.15x = 908.75 × 375.39
  4. Step 4: Simplify right side
    605.15x = 341,133.79
  5. Step 5: Solve for x
    x = 341,133.79/605.15
  6. Step 6: Final answer
    x = 563.72

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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.