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Finding the Fourth Proportional to 328,928.38, 493,410.06 and 104,306.54

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Solution

The fourth proportional to 328,928.38, 493,410.06 and 104,306.54 is: 156,465.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,928.38 : 493,410.06 = 104,306.54 : x
  2. Step 2: Convert to fraction form
    328,928.38/493,410.06 = 104,306.54/x
  3. Step 3: Cross multiply
    328,928.38x = 493,410.06 × 104,306.54
  4. Step 4: Simplify right side
    328,928.38x = 51,465,893,692.74
  5. Step 5: Solve for x
    x = 51,465,893,692.74/328,928.38
  6. Step 6: Final answer
    x = 156,465.35

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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.