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Finding the Fourth Proportional to 223,999.31, 335,882.31 and 105,638.87

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Solution

The fourth proportional to 223,999.31, 335,882.31 and 105,638.87 is: 158,403.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,999.31 : 335,882.31 = 105,638.87 : x
  2. Step 2: Convert to fraction form
    223,999.31/335,882.31 = 105,638.87/x
  3. Step 3: Cross multiply
    223,999.31x = 335,882.31 × 105,638.87
  4. Step 4: Simplify right side
    223,999.31x = 35,482,226,001.98
  5. Step 5: Solve for x
    x = 35,482,226,001.98/223,999.31
  6. Step 6: Final answer
    x = 158,403.29

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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.