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Finding the Fourth Proportional to 301.30, 451.32 and 156.58

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Solution

The fourth proportional to 301.30, 451.32 and 156.58 is: 234.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.30 : 451.32 = 156.58 : x
  2. Step 2: Convert to fraction form
    301.30/451.32 = 156.58/x
  3. Step 3: Cross multiply
    301.30x = 451.32 × 156.58
  4. Step 4: Simplify right side
    301.30x = 70,667.69
  5. Step 5: Solve for x
    x = 70,667.69/301.30
  6. Step 6: Final answer
    x = 234.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.