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Finding the Fourth Proportional to 358,619.54, 494,879.02 and 205,548.03

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Solution

The fourth proportional to 358,619.54, 494,879.02 and 205,548.03 is: 283,647.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,619.54 : 494,879.02 = 205,548.03 : x
  2. Step 2: Convert to fraction form
    358,619.54/494,879.02 = 205,548.03/x
  3. Step 3: Cross multiply
    358,619.54x = 494,879.02 × 205,548.03
  4. Step 4: Simplify right side
    358,619.54x = 101,721,407,135.46
  5. Step 5: Solve for x
    x = 101,721,407,135.46/358,619.54
  6. Step 6: Final answer
    x = 283,647.14

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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.