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Finding the Fourth Proportional to 601.75, 830.82 and 369.28

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Solution

The fourth proportional to 601.75, 830.82 and 369.28 is: 509.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.75 : 830.82 = 369.28 : x
  2. Step 2: Convert to fraction form
    601.75/830.82 = 369.28/x
  3. Step 3: Cross multiply
    601.75x = 830.82 × 369.28
  4. Step 4: Simplify right side
    601.75x = 306,805.21
  5. Step 5: Solve for x
    x = 306,805.21/601.75
  6. Step 6: Final answer
    x = 509.85

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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.