Home / 994.24-1,491.36-263.85

Finding the Fourth Proportional to 994.24, 1,491.36 and 263.85

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Solution

The fourth proportional to 994.24, 1,491.36 and 263.85 is: 395.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    994.24 : 1,491.36 = 263.85 : x
  2. Step 2: Convert to fraction form
    994.24/1,491.36 = 263.85/x
  3. Step 3: Cross multiply
    994.24x = 1,491.36 × 263.85
  4. Step 4: Simplify right side
    994.24x = 393,495.34
  5. Step 5: Solve for x
    x = 393,495.34/994.24
  6. Step 6: Final answer
    x = 395.78

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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.