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Finding the Fourth Proportional to 253,901.82, 350,393.47 and 139,180.38

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Solution

The fourth proportional to 253,901.82, 350,393.47 and 139,180.38 is: 192,073.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,901.82 : 350,393.47 = 139,180.38 : x
  2. Step 2: Convert to fraction form
    253,901.82/350,393.47 = 139,180.38/x
  3. Step 3: Cross multiply
    253,901.82x = 350,393.47 × 139,180.38
  4. Step 4: Simplify right side
    253,901.82x = 48,767,895,033.64
  5. Step 5: Solve for x
    x = 48,767,895,033.64/253,901.82
  6. Step 6: Final answer
    x = 192,073.83

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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.