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Finding the Fourth Proportional to 431.37, 594.59 and 300.15

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Solution

The fourth proportional to 431.37, 594.59 and 300.15 is: 413.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    431.37 : 594.59 = 300.15 : x
  2. Step 2: Convert to fraction form
    431.37/594.59 = 300.15/x
  3. Step 3: Cross multiply
    431.37x = 594.59 × 300.15
  4. Step 4: Simplify right side
    431.37x = 178,464.69
  5. Step 5: Solve for x
    x = 178,464.69/431.37
  6. Step 6: Final answer
    x = 413.72

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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.