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Finding the Fourth Proportional to 352.84, 528.70 and 231.08

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Solution

The fourth proportional to 352.84, 528.70 and 231.08 is: 346.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.84 : 528.70 = 231.08 : x
  2. Step 2: Convert to fraction form
    352.84/528.70 = 231.08/x
  3. Step 3: Cross multiply
    352.84x = 528.70 × 231.08
  4. Step 4: Simplify right side
    352.84x = 122,172.00
  5. Step 5: Solve for x
    x = 122,172.00/352.84
  6. Step 6: Final answer
    x = 346.25

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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.