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Finding the Fourth Proportional to 901.08, 1,351.58 and 323.94

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Solution

The fourth proportional to 901.08, 1,351.58 and 323.94 is: 485.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    901.08 : 1,351.58 = 323.94 : x
  2. Step 2: Convert to fraction form
    901.08/1,351.58 = 323.94/x
  3. Step 3: Cross multiply
    901.08x = 1,351.58 × 323.94
  4. Step 4: Simplify right side
    901.08x = 437,830.83
  5. Step 5: Solve for x
    x = 437,830.83/901.08
  6. Step 6: Final answer
    x = 485.90

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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.