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Finding the Fourth Proportional to 488.97, 675.63 and 443.10

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Solution

The fourth proportional to 488.97, 675.63 and 443.10 is: 612.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.97 : 675.63 = 443.10 : x
  2. Step 2: Convert to fraction form
    488.97/675.63 = 443.10/x
  3. Step 3: Cross multiply
    488.97x = 675.63 × 443.10
  4. Step 4: Simplify right side
    488.97x = 299,371.65
  5. Step 5: Solve for x
    x = 299,371.65/488.97
  6. Step 6: Final answer
    x = 612.25

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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.