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Finding the Fourth Proportional to 353,641.02, 488,011.03 and 200,670.09

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Solution

The fourth proportional to 353,641.02, 488,011.03 and 200,670.09 is: 276,917.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,641.02 : 488,011.03 = 200,670.09 : x
  2. Step 2: Convert to fraction form
    353,641.02/488,011.03 = 200,670.09/x
  3. Step 3: Cross multiply
    353,641.02x = 488,011.03 × 200,670.09
  4. Step 4: Simplify right side
    353,641.02x = 97,929,217,724.44
  5. Step 5: Solve for x
    x = 97,929,217,724.44/353,641.02
  6. Step 6: Final answer
    x = 276,917.02

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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.