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Finding the Fourth Proportional to 352.45, 488.40 and 348.06

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Solution

The fourth proportional to 352.45, 488.40 and 348.06 is: 482.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.45 : 488.40 = 348.06 : x
  2. Step 2: Convert to fraction form
    352.45/488.40 = 348.06/x
  3. Step 3: Cross multiply
    352.45x = 488.40 × 348.06
  4. Step 4: Simplify right side
    352.45x = 169,993.03
  5. Step 5: Solve for x
    x = 169,993.03/352.45
  6. Step 6: Final answer
    x = 482.32

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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.