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Finding the Fourth Proportional to 483.03, 669.38 and 473.80

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Solution

The fourth proportional to 483.03, 669.38 and 473.80 is: 656.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.03 : 669.38 = 473.80 : x
  2. Step 2: Convert to fraction form
    483.03/669.38 = 473.80/x
  3. Step 3: Cross multiply
    483.03x = 669.38 × 473.80
  4. Step 4: Simplify right side
    483.03x = 317,146.53
  5. Step 5: Solve for x
    x = 317,146.53/483.03
  6. Step 6: Final answer
    x = 656.58

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.