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Finding the Fourth Proportional to 349,185.08, 522,744.24 and 215,636

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Solution

The fourth proportional to 349,185.08, 522,744.24 and 215,636 is: 322,815.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,185.08 : 522,744.24 = 215,636 : x
  2. Step 2: Convert to fraction form
    349,185.08/522,744.24 = 215,636/x
  3. Step 3: Cross multiply
    349,185.08x = 522,744.24 × 215,636
  4. Step 4: Simplify right side
    349,185.08x = 112,722,476,936.64
  5. Step 5: Solve for x
    x = 112,722,476,936.64/349,185.08
  6. Step 6: Final answer
    x = 322,815.85

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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.