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Finding the Fourth Proportional to 633.61, 949.60 and 359.63

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Solution

The fourth proportional to 633.61, 949.60 and 359.63 is: 538.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.61 : 949.60 = 359.63 : x
  2. Step 2: Convert to fraction form
    633.61/949.60 = 359.63/x
  3. Step 3: Cross multiply
    633.61x = 949.60 × 359.63
  4. Step 4: Simplify right side
    633.61x = 341,504.65
  5. Step 5: Solve for x
    x = 341,504.65/633.61
  6. Step 6: Final answer
    x = 538.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.