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Finding the Fourth Proportional to 328,706.30, 493,133.34 and 104,080.16

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Solution

The fourth proportional to 328,706.30, 493,133.34 and 104,080.16 is: 156,143.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,706.30 : 493,133.34 = 104,080.16 : x
  2. Step 2: Convert to fraction form
    328,706.30/493,133.34 = 104,080.16/x
  3. Step 3: Cross multiply
    328,706.30x = 493,133.34 × 104,080.16
  4. Step 4: Simplify right side
    328,706.30x = 51,325,396,928.53
  5. Step 5: Solve for x
    x = 51,325,396,928.53/328,706.30
  6. Step 6: Final answer
    x = 156,143.64

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.