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Finding the Fourth Proportional to 358.37, 537.64 and 111.59

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Solution

The fourth proportional to 358.37, 537.64 and 111.59 is: 167.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.37 : 537.64 = 111.59 : x
  2. Step 2: Convert to fraction form
    358.37/537.64 = 111.59/x
  3. Step 3: Cross multiply
    358.37x = 537.64 × 111.59
  4. Step 4: Simplify right side
    358.37x = 59,994.30
  5. Step 5: Solve for x
    x = 59,994.30/358.37
  6. Step 6: Final answer
    x = 167.41

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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.