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Finding the Fourth Proportional to 605.28, 907.29 and 297.15

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Solution

The fourth proportional to 605.28, 907.29 and 297.15 is: 445.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.28 : 907.29 = 297.15 : x
  2. Step 2: Convert to fraction form
    605.28/907.29 = 297.15/x
  3. Step 3: Cross multiply
    605.28x = 907.29 × 297.15
  4. Step 4: Simplify right side
    605.28x = 269,601.22
  5. Step 5: Solve for x
    x = 269,601.22/605.28
  6. Step 6: Final answer
    x = 445.42

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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.