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Finding the Fourth Proportional to 352.08, 484.65 and 258.69

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Solution

The fourth proportional to 352.08, 484.65 and 258.69 is: 356.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.08 : 484.65 = 258.69 : x
  2. Step 2: Convert to fraction form
    352.08/484.65 = 258.69/x
  3. Step 3: Cross multiply
    352.08x = 484.65 × 258.69
  4. Step 4: Simplify right side
    352.08x = 125,374.11
  5. Step 5: Solve for x
    x = 125,374.11/352.08
  6. Step 6: Final answer
    x = 356.10

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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.