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Finding the Fourth Proportional to 451.31, 673.10 and 443.51

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Solution

The fourth proportional to 451.31, 673.10 and 443.51 is: 661.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.31 : 673.10 = 443.51 : x
  2. Step 2: Convert to fraction form
    451.31/673.10 = 443.51/x
  3. Step 3: Cross multiply
    451.31x = 673.10 × 443.51
  4. Step 4: Simplify right side
    451.31x = 298,521.00
  5. Step 5: Solve for x
    x = 298,521.00/451.31
  6. Step 6: Final answer
    x = 661.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.