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Finding the Fourth Proportional to 328,732.38, 493,155 and 104,089.14

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Solution

The fourth proportional to 328,732.38, 493,155 and 104,089.14 is: 156,151.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,732.38 : 493,155 = 104,089.14 : x
  2. Step 2: Convert to fraction form
    328,732.38/493,155 = 104,089.14/x
  3. Step 3: Cross multiply
    328,732.38x = 493,155 × 104,089.14
  4. Step 4: Simplify right side
    328,732.38x = 51,332,079,836.70
  5. Step 5: Solve for x
    x = 51,332,079,836.70/328,732.38
  6. Step 6: Final answer
    x = 156,151.58

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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.