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Finding the Fourth Proportional to 365.40, 504.36 and 234.45

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Solution

The fourth proportional to 365.40, 504.36 and 234.45 is: 323.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.40 : 504.36 = 234.45 : x
  2. Step 2: Convert to fraction form
    365.40/504.36 = 234.45/x
  3. Step 3: Cross multiply
    365.40x = 504.36 × 234.45
  4. Step 4: Simplify right side
    365.40x = 118,247.20
  5. Step 5: Solve for x
    x = 118,247.20/365.40
  6. Step 6: Final answer
    x = 323.61

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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.