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Finding the Fourth Proportional to 373,665.56, 515,653.63 and 203,896.76

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Solution

The fourth proportional to 373,665.56, 515,653.63 and 203,896.76 is: 281,374.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,665.56 : 515,653.63 = 203,896.76 : x
  2. Step 2: Convert to fraction form
    373,665.56/515,653.63 = 203,896.76/x
  3. Step 3: Cross multiply
    373,665.56x = 515,653.63 × 203,896.76
  4. Step 4: Simplify right side
    373,665.56x = 105,140,101,351.23
  5. Step 5: Solve for x
    x = 105,140,101,351.23/373,665.56
  6. Step 6: Final answer
    x = 281,374.88

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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.