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Finding the Fourth Proportional to 606.85, 907.98 and 371.75

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Solution

The fourth proportional to 606.85, 907.98 and 371.75 is: 556.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.85 : 907.98 = 371.75 : x
  2. Step 2: Convert to fraction form
    606.85/907.98 = 371.75/x
  3. Step 3: Cross multiply
    606.85x = 907.98 × 371.75
  4. Step 4: Simplify right side
    606.85x = 337,541.57
  5. Step 5: Solve for x
    x = 337,541.57/606.85
  6. Step 6: Final answer
    x = 556.22

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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.