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Finding the Fourth Proportional to 239,346.96, 330,300.81 and 131,917.26

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Solution

The fourth proportional to 239,346.96, 330,300.81 and 131,917.26 is: 182,046.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,346.96 : 330,300.81 = 131,917.26 : x
  2. Step 2: Convert to fraction form
    239,346.96/330,300.81 = 131,917.26/x
  3. Step 3: Cross multiply
    239,346.96x = 330,300.81 × 131,917.26
  4. Step 4: Simplify right side
    239,346.96x = 43,572,379,069.61
  5. Step 5: Solve for x
    x = 43,572,379,069.61/239,346.96
  6. Step 6: Final answer
    x = 182,046.93

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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.