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Finding the Fourth Proportional to 301.07, 451.25 and 108.47

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Solution

The fourth proportional to 301.07, 451.25 and 108.47 is: 162.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.07 : 451.25 = 108.47 : x
  2. Step 2: Convert to fraction form
    301.07/451.25 = 108.47/x
  3. Step 3: Cross multiply
    301.07x = 451.25 × 108.47
  4. Step 4: Simplify right side
    301.07x = 48,946.55
  5. Step 5: Solve for x
    x = 48,946.55/301.07
  6. Step 6: Final answer
    x = 162.58

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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.