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Finding the Fourth Proportional to 605.54, 907.63 and 361.56

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Solution

The fourth proportional to 605.54, 907.63 and 361.56 is: 541.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.54 : 907.63 = 361.56 : x
  2. Step 2: Convert to fraction form
    605.54/907.63 = 361.56/x
  3. Step 3: Cross multiply
    605.54x = 907.63 × 361.56
  4. Step 4: Simplify right side
    605.54x = 328,162.70
  5. Step 5: Solve for x
    x = 328,162.70/605.54
  6. Step 6: Final answer
    x = 541.93

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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.