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Finding the Fourth Proportional to 358.75, 536.90 and 277.96

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Solution

The fourth proportional to 358.75, 536.90 and 277.96 is: 415.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.75 : 536.90 = 277.96 : x
  2. Step 2: Convert to fraction form
    358.75/536.90 = 277.96/x
  3. Step 3: Cross multiply
    358.75x = 536.90 × 277.96
  4. Step 4: Simplify right side
    358.75x = 149,232.65
  5. Step 5: Solve for x
    x = 149,232.65/358.75
  6. Step 6: Final answer
    x = 415.99

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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.