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Finding the Fourth Proportional to 269,277.79, 403,926.94 and 100,780.37

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Solution

The fourth proportional to 269,277.79, 403,926.94 and 100,780.37 is: 151,174.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,277.79 : 403,926.94 = 100,780.37 : x
  2. Step 2: Convert to fraction form
    269,277.79/403,926.94 = 100,780.37/x
  3. Step 3: Cross multiply
    269,277.79x = 403,926.94 × 100,780.37
  4. Step 4: Simplify right side
    269,277.79x = 40,707,907,792.43
  5. Step 5: Solve for x
    x = 40,707,907,792.43/269,277.79
  6. Step 6: Final answer
    x = 151,174.40

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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.