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Finding the Fourth Proportional to 401.08, 601.50 and 112.48

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Solution

The fourth proportional to 401.08, 601.50 and 112.48 is: 168.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    401.08 : 601.50 = 112.48 : x
  2. Step 2: Convert to fraction form
    401.08/601.50 = 112.48/x
  3. Step 3: Cross multiply
    401.08x = 601.50 × 112.48
  4. Step 4: Simplify right side
    401.08x = 67,656.72
  5. Step 5: Solve for x
    x = 67,656.72/401.08
  6. Step 6: Final answer
    x = 168.69

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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.