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Finding the Fourth Proportional to 465.03, 641.52 and 299.39

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Solution

The fourth proportional to 465.03, 641.52 and 299.39 is: 413.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    465.03 : 641.52 = 299.39 : x
  2. Step 2: Convert to fraction form
    465.03/641.52 = 299.39/x
  3. Step 3: Cross multiply
    465.03x = 641.52 × 299.39
  4. Step 4: Simplify right side
    465.03x = 192,061.47
  5. Step 5: Solve for x
    x = 192,061.47/465.03
  6. Step 6: Final answer
    x = 413.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.