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Finding the Fourth Proportional to 300,789.47, 451,404.73 and 242,330.96

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Solution

The fourth proportional to 300,789.47, 451,404.73 and 242,330.96 is: 363,674.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,789.47 : 451,404.73 = 242,330.96 : x
  2. Step 2: Convert to fraction form
    300,789.47/451,404.73 = 242,330.96/x
  3. Step 3: Cross multiply
    300,789.47x = 451,404.73 × 242,330.96
  4. Step 4: Simplify right side
    300,789.47x = 109,389,341,569.44
  5. Step 5: Solve for x
    x = 109,389,341,569.44/300,789.47
  6. Step 6: Final answer
    x = 363,674.11

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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.