Home / 269,128.55-403,690.79-69,431.96

Finding the Fourth Proportional to 269,128.55, 403,690.79 and 69,431.96

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Solution

The fourth proportional to 269,128.55, 403,690.79 and 69,431.96 is: 104,147.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,128.55 : 403,690.79 = 69,431.96 : x
  2. Step 2: Convert to fraction form
    269,128.55/403,690.79 = 69,431.96/x
  3. Step 3: Cross multiply
    269,128.55x = 403,690.79 × 69,431.96
  4. Step 4: Simplify right side
    269,128.55x = 28,029,040,938.77
  5. Step 5: Solve for x
    x = 28,029,040,938.77/269,128.55
  6. Step 6: Final answer
    x = 104,147.41

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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.