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Finding the Fourth Proportional to 483.23, 667.54 and 384.86

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Solution

The fourth proportional to 483.23, 667.54 and 384.86 is: 531.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.23 : 667.54 = 384.86 : x
  2. Step 2: Convert to fraction form
    483.23/667.54 = 384.86/x
  3. Step 3: Cross multiply
    483.23x = 667.54 × 384.86
  4. Step 4: Simplify right side
    483.23x = 256,911.59
  5. Step 5: Solve for x
    x = 256,911.59/483.23
  6. Step 6: Final answer
    x = 531.65

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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.