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Finding the Fourth Proportional to 651.10, 898.22 and 441.20

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Solution

The fourth proportional to 651.10, 898.22 and 441.20 is: 608.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.10 : 898.22 = 441.20 : x
  2. Step 2: Convert to fraction form
    651.10/898.22 = 441.20/x
  3. Step 3: Cross multiply
    651.10x = 898.22 × 441.20
  4. Step 4: Simplify right side
    651.10x = 396,287.97
  5. Step 5: Solve for x
    x = 396,287.97/651.10
  6. Step 6: Final answer
    x = 608.64

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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.