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Finding the Fourth Proportional to 424.77, 585.39 and 300.12

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Solution

The fourth proportional to 424.77, 585.39 and 300.12 is: 413.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    424.77 : 585.39 = 300.12 : x
  2. Step 2: Convert to fraction form
    424.77/585.39 = 300.12/x
  3. Step 3: Cross multiply
    424.77x = 585.39 × 300.12
  4. Step 4: Simplify right side
    424.77x = 175,687.25
  5. Step 5: Solve for x
    x = 175,687.25/424.77
  6. Step 6: Final answer
    x = 413.61

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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.