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Finding the Fourth Proportional to 365.76, 504.15 and 303.81

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Solution

The fourth proportional to 365.76, 504.15 and 303.81 is: 418.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.76 : 504.15 = 303.81 : x
  2. Step 2: Convert to fraction form
    365.76/504.15 = 303.81/x
  3. Step 3: Cross multiply
    365.76x = 504.15 × 303.81
  4. Step 4: Simplify right side
    365.76x = 153,165.81
  5. Step 5: Solve for x
    x = 153,165.81/365.76
  6. Step 6: Final answer
    x = 418.76

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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.