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Finding the Fourth Proportional to 603,669.30, 905,175.90 and 204,104.40

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Solution

The fourth proportional to 603,669.30, 905,175.90 and 204,104.40 is: 306,045.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,669.30 : 905,175.90 = 204,104.40 : x
  2. Step 2: Convert to fraction form
    603,669.30/905,175.90 = 204,104.40/x
  3. Step 3: Cross multiply
    603,669.30x = 905,175.90 × 204,104.40
  4. Step 4: Simplify right side
    603,669.30x = 184,750,383,963.96
  5. Step 5: Solve for x
    x = 184,750,383,963.96/603,669.30
  6. Step 6: Final answer
    x = 306,045.68

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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.