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Finding the Fourth Proportional to 354.83, 528.48 and 339.03

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Solution

The fourth proportional to 354.83, 528.48 and 339.03 is: 504.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.83 : 528.48 = 339.03 : x
  2. Step 2: Convert to fraction form
    354.83/528.48 = 339.03/x
  3. Step 3: Cross multiply
    354.83x = 528.48 × 339.03
  4. Step 4: Simplify right side
    354.83x = 179,170.57
  5. Step 5: Solve for x
    x = 179,170.57/354.83
  6. Step 6: Final answer
    x = 504.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.