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Finding the Fourth Proportional to 265.08, 395.91 and 228.63

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Solution

The fourth proportional to 265.08, 395.91 and 228.63 is: 341.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.08 : 395.91 = 228.63 : x
  2. Step 2: Convert to fraction form
    265.08/395.91 = 228.63/x
  3. Step 3: Cross multiply
    265.08x = 395.91 × 228.63
  4. Step 4: Simplify right side
    265.08x = 90,514.56
  5. Step 5: Solve for x
    x = 90,514.56/265.08
  6. Step 6: Final answer
    x = 341.47

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.