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Finding the Fourth Proportional to 376.15, 564.14 and 102.25

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Solution

The fourth proportional to 376.15, 564.14 and 102.25 is: 153.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.15 : 564.14 = 102.25 : x
  2. Step 2: Convert to fraction form
    376.15/564.14 = 102.25/x
  3. Step 3: Cross multiply
    376.15x = 564.14 × 102.25
  4. Step 4: Simplify right side
    376.15x = 57,680.81
  5. Step 5: Solve for x
    x = 57,680.81/376.15
  6. Step 6: Final answer
    x = 153.34

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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.