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Finding the Fourth Proportional to 483.81, 667.41 and 284.50

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Solution

The fourth proportional to 483.81, 667.41 and 284.50 is: 392.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.81 : 667.41 = 284.50 : x
  2. Step 2: Convert to fraction form
    483.81/667.41 = 284.50/x
  3. Step 3: Cross multiply
    483.81x = 667.41 × 284.50
  4. Step 4: Simplify right side
    483.81x = 189,878.15
  5. Step 5: Solve for x
    x = 189,878.15/483.81
  6. Step 6: Final answer
    x = 392.46

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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.