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Finding the Fourth Proportional to 350,388, 483,536.16 and 199,485

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Solution

The fourth proportional to 350,388, 483,536.16 and 199,485 is: 275,289.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,388 : 483,536.16 = 199,485 : x
  2. Step 2: Convert to fraction form
    350,388/483,536.16 = 199,485/x
  3. Step 3: Cross multiply
    350,388x = 483,536.16 × 199,485
  4. Step 4: Simplify right side
    350,388x = 96,458,210,877.60
  5. Step 5: Solve for x
    x = 96,458,210,877.60/350,388
  6. Step 6: Final answer
    x = 275,289.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.