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Finding the Fourth Proportional to 358.31, 537.49 and 114.86

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Solution

The fourth proportional to 358.31, 537.49 and 114.86 is: 172.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.31 : 537.49 = 114.86 : x
  2. Step 2: Convert to fraction form
    358.31/537.49 = 114.86/x
  3. Step 3: Cross multiply
    358.31x = 537.49 × 114.86
  4. Step 4: Simplify right side
    358.31x = 61,736.10
  5. Step 5: Solve for x
    x = 61,736.10/358.31
  6. Step 6: Final answer
    x = 172.30

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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.