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Finding the Fourth Proportional to 353,658.33, 488,060.26 and 198,636.89

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Solution

The fourth proportional to 353,658.33, 488,060.26 and 198,636.89 is: 274,125.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,658.33 : 488,060.26 = 198,636.89 : x
  2. Step 2: Convert to fraction form
    353,658.33/488,060.26 = 198,636.89/x
  3. Step 3: Cross multiply
    353,658.33x = 488,060.26 × 198,636.89
  4. Step 4: Simplify right side
    353,658.33x = 96,946,769,242.10
  5. Step 5: Solve for x
    x = 96,946,769,242.10/353,658.33
  6. Step 6: Final answer
    x = 274,125.51

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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.