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Finding the Fourth Proportional to 441.51, 609.28 and 245.02

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Solution

The fourth proportional to 441.51, 609.28 and 245.02 is: 338.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.51 : 609.28 = 245.02 : x
  2. Step 2: Convert to fraction form
    441.51/609.28 = 245.02/x
  3. Step 3: Cross multiply
    441.51x = 609.28 × 245.02
  4. Step 4: Simplify right side
    441.51x = 149,283.65
  5. Step 5: Solve for x
    x = 149,283.65/441.51
  6. Step 6: Final answer
    x = 338.12

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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.