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Finding the Fourth Proportional to 488.18, 673.27 and 348.03

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Solution

The fourth proportional to 488.18, 673.27 and 348.03 is: 479.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.18 : 673.27 = 348.03 : x
  2. Step 2: Convert to fraction form
    488.18/673.27 = 348.03/x
  3. Step 3: Cross multiply
    488.18x = 673.27 × 348.03
  4. Step 4: Simplify right side
    488.18x = 234,318.16
  5. Step 5: Solve for x
    x = 234,318.16/488.18
  6. Step 6: Final answer
    x = 479.98

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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.