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Finding the Fourth Proportional to 269,817, 404,745.48 and 103,605

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Solution

The fourth proportional to 269,817, 404,745.48 and 103,605 is: 155,415.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,817 : 404,745.48 = 103,605 : x
  2. Step 2: Convert to fraction form
    269,817/404,745.48 = 103,605/x
  3. Step 3: Cross multiply
    269,817x = 404,745.48 × 103,605
  4. Step 4: Simplify right side
    269,817x = 41,933,655,455.40
  5. Step 5: Solve for x
    x = 41,933,655,455.40/269,817
  6. Step 6: Final answer
    x = 155,415.17

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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.