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Finding the Fourth Proportional to 308,290.14, 462,120 and 174,888.60

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Solution

The fourth proportional to 308,290.14, 462,120 and 174,888.60 is: 262,154.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,290.14 : 462,120 = 174,888.60 : x
  2. Step 2: Convert to fraction form
    308,290.14/462,120 = 174,888.60/x
  3. Step 3: Cross multiply
    308,290.14x = 462,120 × 174,888.60
  4. Step 4: Simplify right side
    308,290.14x = 80,819,519,832
  5. Step 5: Solve for x
    x = 80,819,519,832/308,290.14
  6. Step 6: Final answer
    x = 262,154.09

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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.