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Finding the Fourth Proportional to 590.45, 885.58 and 371.09

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Solution

The fourth proportional to 590.45, 885.58 and 371.09 is: 556.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.45 : 885.58 = 371.09 : x
  2. Step 2: Convert to fraction form
    590.45/885.58 = 371.09/x
  3. Step 3: Cross multiply
    590.45x = 885.58 × 371.09
  4. Step 4: Simplify right side
    590.45x = 328,629.88
  5. Step 5: Solve for x
    x = 328,629.88/590.45
  6. Step 6: Final answer
    x = 556.58

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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.