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Finding the Fourth Proportional to 358.87, 537.91 and 204.45

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Solution

The fourth proportional to 358.87, 537.91 and 204.45 is: 306.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.87 : 537.91 = 204.45 : x
  2. Step 2: Convert to fraction form
    358.87/537.91 = 204.45/x
  3. Step 3: Cross multiply
    358.87x = 537.91 × 204.45
  4. Step 4: Simplify right side
    358.87x = 109,977.77
  5. Step 5: Solve for x
    x = 109,977.77/358.87
  6. Step 6: Final answer
    x = 306.46

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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.