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Finding the Fourth Proportional to 416.61, 624.99 and 200.19

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Solution

The fourth proportional to 416.61, 624.99 and 200.19 is: 300.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    416.61 : 624.99 = 200.19 : x
  2. Step 2: Convert to fraction form
    416.61/624.99 = 200.19/x
  3. Step 3: Cross multiply
    416.61x = 624.99 × 200.19
  4. Step 4: Simplify right side
    416.61x = 125,116.75
  5. Step 5: Solve for x
    x = 125,116.75/416.61
  6. Step 6: Final answer
    x = 300.32

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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.