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Finding the Fourth Proportional to 300.10, 413.85 and 234.58

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Solution

The fourth proportional to 300.10, 413.85 and 234.58 is: 323.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.10 : 413.85 = 234.58 : x
  2. Step 2: Convert to fraction form
    300.10/413.85 = 234.58/x
  3. Step 3: Cross multiply
    300.10x = 413.85 × 234.58
  4. Step 4: Simplify right side
    300.10x = 97,080.93
  5. Step 5: Solve for x
    x = 97,080.93/300.10
  6. Step 6: Final answer
    x = 323.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.