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Finding the Fourth Proportional to 443.37, 613.56 and 384.36

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Solution

The fourth proportional to 443.37, 613.56 and 384.36 is: 531.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    443.37 : 613.56 = 384.36 : x
  2. Step 2: Convert to fraction form
    443.37/613.56 = 384.36/x
  3. Step 3: Cross multiply
    443.37x = 613.56 × 384.36
  4. Step 4: Simplify right side
    443.37x = 235,827.92
  5. Step 5: Solve for x
    x = 235,827.92/443.37
  6. Step 6: Final answer
    x = 531.90

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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.