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Finding the Fourth Proportional to 365.60, 544.94 and 355.34

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Solution

The fourth proportional to 365.60, 544.94 and 355.34 is: 529.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.60 : 544.94 = 355.34 : x
  2. Step 2: Convert to fraction form
    365.60/544.94 = 355.34/x
  3. Step 3: Cross multiply
    365.60x = 544.94 × 355.34
  4. Step 4: Simplify right side
    365.60x = 193,634.48
  5. Step 5: Solve for x
    x = 193,634.48/365.60
  6. Step 6: Final answer
    x = 529.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.