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Finding the Fourth Proportional to 202.86, 304.11 and 94.77

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Solution

The fourth proportional to 202.86, 304.11 and 94.77 is: 142.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    202.86 : 304.11 = 94.77 : x
  2. Step 2: Convert to fraction form
    202.86/304.11 = 94.77/x
  3. Step 3: Cross multiply
    202.86x = 304.11 × 94.77
  4. Step 4: Simplify right side
    202.86x = 28,820.50
  5. Step 5: Solve for x
    x = 28,820.50/202.86
  6. Step 6: Final answer
    x = 142.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.