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Finding the Fourth Proportional to 328,658.04, 493,236.42 and 221,789.04

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Solution

The fourth proportional to 328,658.04, 493,236.42 and 221,789.04 is: 332,851.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,658.04 : 493,236.42 = 221,789.04 : x
  2. Step 2: Convert to fraction form
    328,658.04/493,236.42 = 221,789.04/x
  3. Step 3: Cross multiply
    328,658.04x = 493,236.42 × 221,789.04
  4. Step 4: Simplify right side
    328,658.04x = 109,394,432,084.84
  5. Step 5: Solve for x
    x = 109,394,432,084.84/328,658.04
  6. Step 6: Final answer
    x = 332,851.84

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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.