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Finding the Fourth Proportional to 589.42, 882.96 and 345.42

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Solution

The fourth proportional to 589.42, 882.96 and 345.42 is: 517.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.42 : 882.96 = 345.42 : x
  2. Step 2: Convert to fraction form
    589.42/882.96 = 345.42/x
  3. Step 3: Cross multiply
    589.42x = 882.96 × 345.42
  4. Step 4: Simplify right side
    589.42x = 304,992.04
  5. Step 5: Solve for x
    x = 304,992.04/589.42
  6. Step 6: Final answer
    x = 517.44

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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.