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Finding the Fourth Proportional to 480.99, 663.52 and 368.88

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Solution

The fourth proportional to 480.99, 663.52 and 368.88 is: 508.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.99 : 663.52 = 368.88 : x
  2. Step 2: Convert to fraction form
    480.99/663.52 = 368.88/x
  3. Step 3: Cross multiply
    480.99x = 663.52 × 368.88
  4. Step 4: Simplify right side
    480.99x = 244,759.26
  5. Step 5: Solve for x
    x = 244,759.26/480.99
  6. Step 6: Final answer
    x = 508.87

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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.