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Finding the Fourth Proportional to 633.51, 949.41 and 243.15

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Solution

The fourth proportional to 633.51, 949.41 and 243.15 is: 364.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.51 : 949.41 = 243.15 : x
  2. Step 2: Convert to fraction form
    633.51/949.41 = 243.15/x
  3. Step 3: Cross multiply
    633.51x = 949.41 × 243.15
  4. Step 4: Simplify right side
    633.51x = 230,851.42
  5. Step 5: Solve for x
    x = 230,851.42/633.51
  6. Step 6: Final answer
    x = 364.40

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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.