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Finding the Fourth Proportional to 994.97, 1,492.46 and 264.60

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Solution

The fourth proportional to 994.97, 1,492.46 and 264.60 is: 396.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    994.97 : 1,492.46 = 264.60 : x
  2. Step 2: Convert to fraction form
    994.97/1,492.46 = 264.60/x
  3. Step 3: Cross multiply
    994.97x = 1,492.46 × 264.60
  4. Step 4: Simplify right side
    994.97x = 394,904.92
  5. Step 5: Solve for x
    x = 394,904.92/994.97
  6. Step 6: Final answer
    x = 396.90

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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.