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Finding the Fourth Proportional to 308,003.20, 462,004.80 and 308,003.20

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Solution

The fourth proportional to 308,003.20, 462,004.80 and 308,003.20 is: 462,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,003.20 : 462,004.80 = 308,003.20 : x
  2. Step 2: Convert to fraction form
    308,003.20/462,004.80 = 308,003.20/x
  3. Step 3: Cross multiply
    308,003.20x = 462,004.80 × 308,003.20
  4. Step 4: Simplify right side
    308,003.20x = 142,298,956,815.36
  5. Step 5: Solve for x
    x = 142,298,956,815.36/308,003.20
  6. Step 6: Final answer
    x = 462,004.80

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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.