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Finding the Fourth Proportional to 654.55, 903.27 and 359.81

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Solution

The fourth proportional to 654.55, 903.27 and 359.81 is: 496.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    654.55 : 903.27 = 359.81 : x
  2. Step 2: Convert to fraction form
    654.55/903.27 = 359.81/x
  3. Step 3: Cross multiply
    654.55x = 903.27 × 359.81
  4. Step 4: Simplify right side
    654.55x = 325,005.58
  5. Step 5: Solve for x
    x = 325,005.58/654.55
  6. Step 6: Final answer
    x = 496.54

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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.