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Finding the Fourth Proportional to 269,043.81, 403,425.60 and 100,425.48

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Solution

The fourth proportional to 269,043.81, 403,425.60 and 100,425.48 is: 150,585.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,043.81 : 403,425.60 = 100,425.48 : x
  2. Step 2: Convert to fraction form
    269,043.81/403,425.60 = 100,425.48/x
  3. Step 3: Cross multiply
    269,043.81x = 403,425.60 × 100,425.48
  4. Step 4: Simplify right side
    269,043.81x = 40,514,209,524.29
  5. Step 5: Solve for x
    x = 40,514,209,524.29/269,043.81
  6. Step 6: Final answer
    x = 150,585.92

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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.