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Finding the Fourth Proportional to 352.01, 528.08 and 287.59

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Solution

The fourth proportional to 352.01, 528.08 and 287.59 is: 431.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.01 : 528.08 = 287.59 : x
  2. Step 2: Convert to fraction form
    352.01/528.08 = 287.59/x
  3. Step 3: Cross multiply
    352.01x = 528.08 × 287.59
  4. Step 4: Simplify right side
    352.01x = 151,870.53
  5. Step 5: Solve for x
    x = 151,870.53/352.01
  6. Step 6: Final answer
    x = 431.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.