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Finding the Fourth Proportional to 365.61, 548.84 and 288.83

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Solution

The fourth proportional to 365.61, 548.84 and 288.83 is: 433.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.61 : 548.84 = 288.83 : x
  2. Step 2: Convert to fraction form
    365.61/548.84 = 288.83/x
  3. Step 3: Cross multiply
    365.61x = 548.84 × 288.83
  4. Step 4: Simplify right side
    365.61x = 158,523.55
  5. Step 5: Solve for x
    x = 158,523.55/365.61
  6. Step 6: Final answer
    x = 433.58

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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.