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Finding the Fourth Proportional to 253,007.45, 349,163.28 and 145,593.56

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Solution

The fourth proportional to 253,007.45, 349,163.28 and 145,593.56 is: 200,926.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,007.45 : 349,163.28 = 145,593.56 : x
  2. Step 2: Convert to fraction form
    253,007.45/349,163.28 = 145,593.56/x
  3. Step 3: Cross multiply
    253,007.45x = 349,163.28 × 145,593.56
  4. Step 4: Simplify right side
    253,007.45x = 50,835,923,210.66
  5. Step 5: Solve for x
    x = 50,835,923,210.66/253,007.45
  6. Step 6: Final answer
    x = 200,926.59

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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.