Home / 269,830.12-404,764.74-103,618.12

Finding the Fourth Proportional to 269,830.12, 404,764.74 and 103,618.12

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Solution

The fourth proportional to 269,830.12, 404,764.74 and 103,618.12 is: 155,434.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,830.12 : 404,764.74 = 103,618.12 : x
  2. Step 2: Convert to fraction form
    269,830.12/404,764.74 = 103,618.12/x
  3. Step 3: Cross multiply
    269,830.12x = 404,764.74 × 103,618.12
  4. Step 4: Simplify right side
    269,830.12x = 41,940,961,401.09
  5. Step 5: Solve for x
    x = 41,940,961,401.09/269,830.12
  6. Step 6: Final answer
    x = 155,434.69

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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.