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Finding the Fourth Proportional to 345,871.01, 518,822.42 and 105,967.73

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Solution

The fourth proportional to 345,871.01, 518,822.42 and 105,967.73 is: 158,956.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,871.01 : 518,822.42 = 105,967.73 : x
  2. Step 2: Convert to fraction form
    345,871.01/518,822.42 = 105,967.73/x
  3. Step 3: Cross multiply
    345,871.01x = 518,822.42 × 105,967.73
  4. Step 4: Simplify right side
    345,871.01x = 54,978,430,996.56
  5. Step 5: Solve for x
    x = 54,978,430,996.56/345,871.01
  6. Step 6: Final answer
    x = 158,956.46

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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.