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Finding the Fourth Proportional to 483.00, 666.31 and 283.83

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Solution

The fourth proportional to 483.00, 666.31 and 283.83 is: 391.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.00 : 666.31 = 283.83 : x
  2. Step 2: Convert to fraction form
    483.00/666.31 = 283.83/x
  3. Step 3: Cross multiply
    483.00x = 666.31 × 283.83
  4. Step 4: Simplify right side
    483.00x = 189,118.77
  5. Step 5: Solve for x
    x = 189,118.77/483.00
  6. Step 6: Final answer
    x = 391.55

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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.