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Finding the Fourth Proportional to 366.86, 506.30 and 242.78

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Solution

The fourth proportional to 366.86, 506.30 and 242.78 is: 335.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.86 : 506.30 = 242.78 : x
  2. Step 2: Convert to fraction form
    366.86/506.30 = 242.78/x
  3. Step 3: Cross multiply
    366.86x = 506.30 × 242.78
  4. Step 4: Simplify right side
    366.86x = 122,919.51
  5. Step 5: Solve for x
    x = 122,919.51/366.86
  6. Step 6: Final answer
    x = 335.06

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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.