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Finding the Fourth Proportional to 590.31, 885.59 and 330.68

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Solution

The fourth proportional to 590.31, 885.59 and 330.68 is: 496.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.31 : 885.59 = 330.68 : x
  2. Step 2: Convert to fraction form
    590.31/885.59 = 330.68/x
  3. Step 3: Cross multiply
    590.31x = 885.59 × 330.68
  4. Step 4: Simplify right side
    590.31x = 292,845.25
  5. Step 5: Solve for x
    x = 292,845.25/590.31
  6. Step 6: Final answer
    x = 496.09

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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.