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Finding the Fourth Proportional to 324,911.79, 487,072.44 and 147,321.93

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Solution

The fourth proportional to 324,911.79, 487,072.44 and 147,321.93 is: 220,849.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,911.79 : 487,072.44 = 147,321.93 : x
  2. Step 2: Convert to fraction form
    324,911.79/487,072.44 = 147,321.93/x
  3. Step 3: Cross multiply
    324,911.79x = 487,072.44 × 147,321.93
  4. Step 4: Simplify right side
    324,911.79x = 71,756,451,910.61
  5. Step 5: Solve for x
    x = 71,756,451,910.61/324,911.79
  6. Step 6: Final answer
    x = 220,849.02

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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.