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Finding the Fourth Proportional to 353,801.72, 488,118.15 and 200,751.28

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Solution

The fourth proportional to 353,801.72, 488,118.15 and 200,751.28 is: 276,964.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,801.72 : 488,118.15 = 200,751.28 : x
  2. Step 2: Convert to fraction form
    353,801.72/488,118.15 = 200,751.28/x
  3. Step 3: Cross multiply
    353,801.72x = 488,118.15 × 200,751.28
  4. Step 4: Simplify right side
    353,801.72x = 97,990,342,183.44
  5. Step 5: Solve for x
    x = 97,990,342,183.44/353,801.72
  6. Step 6: Final answer
    x = 276,964.01

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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.