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Finding the Fourth Proportional to 253,073.69, 349,225.05 and 145,626.38

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Solution

The fourth proportional to 253,073.69, 349,225.05 and 145,626.38 is: 200,954.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,073.69 : 349,225.05 = 145,626.38 : x
  2. Step 2: Convert to fraction form
    253,073.69/349,225.05 = 145,626.38/x
  3. Step 3: Cross multiply
    253,073.69x = 349,225.05 × 145,626.38
  4. Step 4: Simplify right side
    253,073.69x = 50,856,379,836.82
  5. Step 5: Solve for x
    x = 50,856,379,836.82/253,073.69
  6. Step 6: Final answer
    x = 200,954.83

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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.