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Finding the Fourth Proportional to 452.65, 623.76 and 328.07

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Solution

The fourth proportional to 452.65, 623.76 and 328.07 is: 452.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.65 : 623.76 = 328.07 : x
  2. Step 2: Convert to fraction form
    452.65/623.76 = 328.07/x
  3. Step 3: Cross multiply
    452.65x = 623.76 × 328.07
  4. Step 4: Simplify right side
    452.65x = 204,636.94
  5. Step 5: Solve for x
    x = 204,636.94/452.65
  6. Step 6: Final answer
    x = 452.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.