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Finding the Fourth Proportional to 298.27, 410.99 and 228.32

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Solution

The fourth proportional to 298.27, 410.99 and 228.32 is: 314.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    298.27 : 410.99 = 228.32 : x
  2. Step 2: Convert to fraction form
    298.27/410.99 = 228.32/x
  3. Step 3: Cross multiply
    298.27x = 410.99 × 228.32
  4. Step 4: Simplify right side
    298.27x = 93,838.84
  5. Step 5: Solve for x
    x = 93,838.84/298.27
  6. Step 6: Final answer
    x = 314.61

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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.