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Finding the Fourth Proportional to 365.94, 549.26 and 192.81

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Solution

The fourth proportional to 365.94, 549.26 and 192.81 is: 289.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.94 : 549.26 = 192.81 : x
  2. Step 2: Convert to fraction form
    365.94/549.26 = 192.81/x
  3. Step 3: Cross multiply
    365.94x = 549.26 × 192.81
  4. Step 4: Simplify right side
    365.94x = 105,899.46
  5. Step 5: Solve for x
    x = 105,899.46/365.94
  6. Step 6: Final answer
    x = 289.39

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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.