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Finding the Fourth Proportional to 328,891.60, 493,855.80 and 188,923.60

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Solution

The fourth proportional to 328,891.60, 493,855.80 and 188,923.60 is: 283,683.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,891.60 : 493,855.80 = 188,923.60 : x
  2. Step 2: Convert to fraction form
    328,891.60/493,855.80 = 188,923.60/x
  3. Step 3: Cross multiply
    328,891.60x = 493,855.80 × 188,923.60
  4. Step 4: Simplify right side
    328,891.60x = 93,301,015,616.88
  5. Step 5: Solve for x
    x = 93,301,015,616.88/328,891.60
  6. Step 6: Final answer
    x = 283,683.18

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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.