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Finding the Fourth Proportional to 269,423.91, 404,145.42 and 67,021.07

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Solution

The fourth proportional to 269,423.91, 404,145.42 and 67,021.07 is: 100,533.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,423.91 : 404,145.42 = 67,021.07 : x
  2. Step 2: Convert to fraction form
    269,423.91/404,145.42 = 67,021.07/x
  3. Step 3: Cross multiply
    269,423.91x = 404,145.42 × 67,021.07
  4. Step 4: Simplify right side
    269,423.91x = 27,086,258,148.89
  5. Step 5: Solve for x
    x = 27,086,258,148.89/269,423.91
  6. Step 6: Final answer
    x = 100,533.98

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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.