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Finding the Fourth Proportional to 451.01, 673.35 and 386.03

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Solution

The fourth proportional to 451.01, 673.35 and 386.03 is: 576.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.01 : 673.35 = 386.03 : x
  2. Step 2: Convert to fraction form
    451.01/673.35 = 386.03/x
  3. Step 3: Cross multiply
    451.01x = 673.35 × 386.03
  4. Step 4: Simplify right side
    451.01x = 259,931.37
  5. Step 5: Solve for x
    x = 259,931.37/451.01
  6. Step 6: Final answer
    x = 576.33

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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.