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Finding the Fourth Proportional to 324,185.76, 485,869.59 and 164,301.90

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Solution

The fourth proportional to 324,185.76, 485,869.59 and 164,301.90 is: 246,245.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,185.76 : 485,869.59 = 164,301.90 : x
  2. Step 2: Convert to fraction form
    324,185.76/485,869.59 = 164,301.90/x
  3. Step 3: Cross multiply
    324,185.76x = 485,869.59 × 164,301.90
  4. Step 4: Simplify right side
    324,185.76x = 79,829,296,789.22
  5. Step 5: Solve for x
    x = 79,829,296,789.22/324,185.76
  6. Step 6: Final answer
    x = 246,245.54

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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.