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Finding the Fourth Proportional to 239,809.86, 330,935.73 and 132,379.86

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Solution

The fourth proportional to 239,809.86, 330,935.73 and 132,379.86 is: 182,683.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,809.86 : 330,935.73 = 132,379.86 : x
  2. Step 2: Convert to fraction form
    239,809.86/330,935.73 = 132,379.86/x
  3. Step 3: Cross multiply
    239,809.86x = 330,935.73 × 132,379.86
  4. Step 4: Simplify right side
    239,809.86x = 43,809,225,606.40
  5. Step 5: Solve for x
    x = 43,809,225,606.40/239,809.86
  6. Step 6: Final answer
    x = 182,683.17

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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.