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Finding the Fourth Proportional to 365.70, 503.52 and 310.32

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Solution

The fourth proportional to 365.70, 503.52 and 310.32 is: 427.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.70 : 503.52 = 310.32 : x
  2. Step 2: Convert to fraction form
    365.70/503.52 = 310.32/x
  3. Step 3: Cross multiply
    365.70x = 503.52 × 310.32
  4. Step 4: Simplify right side
    365.70x = 156,252.33
  5. Step 5: Solve for x
    x = 156,252.33/365.70
  6. Step 6: Final answer
    x = 427.27

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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.