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Finding the Fourth Proportional to 375.89, 519.25 and 356.18

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Solution

The fourth proportional to 375.89, 519.25 and 356.18 is: 492.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.89 : 519.25 = 356.18 : x
  2. Step 2: Convert to fraction form
    375.89/519.25 = 356.18/x
  3. Step 3: Cross multiply
    375.89x = 519.25 × 356.18
  4. Step 4: Simplify right side
    375.89x = 184,945.57
  5. Step 5: Solve for x
    x = 184,945.57/375.89
  6. Step 6: Final answer
    x = 492.03

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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.