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Finding the Fourth Proportional to 375,992.56, 518,866.19 and 203,914.32

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Solution

The fourth proportional to 375,992.56, 518,866.19 and 203,914.32 is: 281,399.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,992.56 : 518,866.19 = 203,914.32 : x
  2. Step 2: Convert to fraction form
    375,992.56/518,866.19 = 203,914.32/x
  3. Step 3: Cross multiply
    375,992.56x = 518,866.19 × 203,914.32
  4. Step 4: Simplify right side
    375,992.56x = 105,804,246,814.63
  5. Step 5: Solve for x
    x = 105,804,246,814.63/375,992.56
  6. Step 6: Final answer
    x = 281,399.84

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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.