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Finding the Fourth Proportional to 304.82, 457.22 and 88.39

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Solution

The fourth proportional to 304.82, 457.22 and 88.39 is: 132.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    304.82 : 457.22 = 88.39 : x
  2. Step 2: Convert to fraction form
    304.82/457.22 = 88.39/x
  3. Step 3: Cross multiply
    304.82x = 457.22 × 88.39
  4. Step 4: Simplify right side
    304.82x = 40,413.68
  5. Step 5: Solve for x
    x = 40,413.68/304.82
  6. Step 6: Final answer
    x = 132.58

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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.