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Finding the Fourth Proportional to 519.47, 779.19 and 366.08

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Solution

The fourth proportional to 519.47, 779.19 and 366.08 is: 549.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    519.47 : 779.19 = 366.08 : x
  2. Step 2: Convert to fraction form
    519.47/779.19 = 366.08/x
  3. Step 3: Cross multiply
    519.47x = 779.19 × 366.08
  4. Step 4: Simplify right side
    519.47x = 285,241.98
  5. Step 5: Solve for x
    x = 285,241.98/519.47
  6. Step 6: Final answer
    x = 549.11

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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.