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Finding the Fourth Proportional to 445,971.69, 615,442.59 and 242,022.60

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Solution

The fourth proportional to 445,971.69, 615,442.59 and 242,022.60 is: 333,992.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,971.69 : 615,442.59 = 242,022.60 : x
  2. Step 2: Convert to fraction form
    445,971.69/615,442.59 = 242,022.60/x
  3. Step 3: Cross multiply
    445,971.69x = 615,442.59 × 242,022.60
  4. Step 4: Simplify right side
    445,971.69x = 148,951,015,782.53
  5. Step 5: Solve for x
    x = 148,951,015,782.53/445,971.69
  6. Step 6: Final answer
    x = 333,992.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.