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Finding the Fourth Proportional to 324,644.67, 487,141.09 and 135,235.89

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Solution

The fourth proportional to 324,644.67, 487,141.09 and 135,235.89 is: 202,926.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,644.67 : 487,141.09 = 135,235.89 : x
  2. Step 2: Convert to fraction form
    324,644.67/487,141.09 = 135,235.89/x
  3. Step 3: Cross multiply
    324,644.67x = 487,141.09 × 135,235.89
  4. Step 4: Simplify right side
    324,644.67x = 65,878,958,523.63
  5. Step 5: Solve for x
    x = 65,878,958,523.63/324,644.67
  6. Step 6: Final answer
    x = 202,926.35

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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.