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Finding the Fourth Proportional to 376.38, 515.16 and 365.58

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Solution

The fourth proportional to 376.38, 515.16 and 365.58 is: 500.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.38 : 515.16 = 365.58 : x
  2. Step 2: Convert to fraction form
    376.38/515.16 = 365.58/x
  3. Step 3: Cross multiply
    376.38x = 515.16 × 365.58
  4. Step 4: Simplify right side
    376.38x = 188,332.19
  5. Step 5: Solve for x
    x = 188,332.19/376.38
  6. Step 6: Final answer
    x = 500.38

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.