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Finding the Fourth Proportional to 404.61, 603.97 and 374.52

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Solution

The fourth proportional to 404.61, 603.97 and 374.52 is: 559.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    404.61 : 603.97 = 374.52 : x
  2. Step 2: Convert to fraction form
    404.61/603.97 = 374.52/x
  3. Step 3: Cross multiply
    404.61x = 603.97 × 374.52
  4. Step 4: Simplify right side
    404.61x = 226,196.97
  5. Step 5: Solve for x
    x = 226,196.97/404.61
  6. Step 6: Final answer
    x = 559.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.