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Finding the Fourth Proportional to 310.37, 428.49 and 237.06

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Solution

The fourth proportional to 310.37, 428.49 and 237.06 is: 327.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    310.37 : 428.49 = 237.06 : x
  2. Step 2: Convert to fraction form
    310.37/428.49 = 237.06/x
  3. Step 3: Cross multiply
    310.37x = 428.49 × 237.06
  4. Step 4: Simplify right side
    310.37x = 101,577.84
  5. Step 5: Solve for x
    x = 101,577.84/310.37
  6. Step 6: Final answer
    x = 327.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.