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Finding the Fourth Proportional to 358.62, 536.56 and 322.65

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Solution

The fourth proportional to 358.62, 536.56 and 322.65 is: 482.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.62 : 536.56 = 322.65 : x
  2. Step 2: Convert to fraction form
    358.62/536.56 = 322.65/x
  3. Step 3: Cross multiply
    358.62x = 536.56 × 322.65
  4. Step 4: Simplify right side
    358.62x = 173,121.08
  5. Step 5: Solve for x
    x = 173,121.08/358.62
  6. Step 6: Final answer
    x = 482.74

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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.