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Finding the Fourth Proportional to 297.93, 411.08 and 228.07

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Solution

The fourth proportional to 297.93, 411.08 and 228.07 is: 314.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.93 : 411.08 = 228.07 : x
  2. Step 2: Convert to fraction form
    297.93/411.08 = 228.07/x
  3. Step 3: Cross multiply
    297.93x = 411.08 × 228.07
  4. Step 4: Simplify right side
    297.93x = 93,755.02
  5. Step 5: Solve for x
    x = 93,755.02/297.93
  6. Step 6: Final answer
    x = 314.69

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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.