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Finding the Fourth Proportional to 375.99, 518.27 and 228.35

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Solution

The fourth proportional to 375.99, 518.27 and 228.35 is: 314.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.99 : 518.27 = 228.35 : x
  2. Step 2: Convert to fraction form
    375.99/518.27 = 228.35/x
  3. Step 3: Cross multiply
    375.99x = 518.27 × 228.35
  4. Step 4: Simplify right side
    375.99x = 118,343.22
  5. Step 5: Solve for x
    x = 118,343.22/375.99
  6. Step 6: Final answer
    x = 314.75

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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.