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Finding the Fourth Proportional to 354.86, 532.28 and 94.86

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Solution

The fourth proportional to 354.86, 532.28 and 94.86 is: 142.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.86 : 532.28 = 94.86 : x
  2. Step 2: Convert to fraction form
    354.86/532.28 = 94.86/x
  3. Step 3: Cross multiply
    354.86x = 532.28 × 94.86
  4. Step 4: Simplify right side
    354.86x = 50,492.08
  5. Step 5: Solve for x
    x = 50,492.08/354.86
  6. Step 6: Final answer
    x = 142.29

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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.