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Finding the Fourth Proportional to 365.93, 505.04 and 292.80

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Solution

The fourth proportional to 365.93, 505.04 and 292.80 is: 404.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.93 : 505.04 = 292.80 : x
  2. Step 2: Convert to fraction form
    365.93/505.04 = 292.80/x
  3. Step 3: Cross multiply
    365.93x = 505.04 × 292.80
  4. Step 4: Simplify right side
    365.93x = 147,874.25
  5. Step 5: Solve for x
    x = 147,874.25/365.93
  6. Step 6: Final answer
    x = 404.11

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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.