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Finding the Fourth Proportional to 308,621.36, 462,969.03 and 108,900.47

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Solution

The fourth proportional to 308,621.36, 462,969.03 and 108,900.47 is: 163,363.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,621.36 : 462,969.03 = 108,900.47 : x
  2. Step 2: Convert to fraction form
    308,621.36/462,969.03 = 108,900.47/x
  3. Step 3: Cross multiply
    308,621.36x = 462,969.03 × 108,900.47
  4. Step 4: Simplify right side
    308,621.36x = 50,417,544,962.44
  5. Step 5: Solve for x
    x = 50,417,544,962.44/308,621.36
  6. Step 6: Final answer
    x = 163,363.76

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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.