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Finding the Fourth Proportional to 308,308.05, 462,181.79 and 118,647.47

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Solution

The fourth proportional to 308,308.05, 462,181.79 and 118,647.47 is: 177,863.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,308.05 : 462,181.79 = 118,647.47 : x
  2. Step 2: Convert to fraction form
    308,308.05/462,181.79 = 118,647.47/x
  3. Step 3: Cross multiply
    308,308.05x = 462,181.79 × 118,647.47
  4. Step 4: Simplify right side
    308,308.05x = 54,836,697,159.43
  5. Step 5: Solve for x
    x = 54,836,697,159.43/308,308.05
  6. Step 6: Final answer
    x = 177,863.33

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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.