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Finding the Fourth Proportional to 404.65, 603.49 and 365.77

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Solution

The fourth proportional to 404.65, 603.49 and 365.77 is: 545.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    404.65 : 603.49 = 365.77 : x
  2. Step 2: Convert to fraction form
    404.65/603.49 = 365.77/x
  3. Step 3: Cross multiply
    404.65x = 603.49 × 365.77
  4. Step 4: Simplify right side
    404.65x = 220,738.54
  5. Step 5: Solve for x
    x = 220,738.54/404.65
  6. Step 6: Final answer
    x = 545.50

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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.