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Finding the Fourth Proportional to 251,010, 376,435.16 and 82,491.44

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Solution

The fourth proportional to 251,010, 376,435.16 and 82,491.44 is: 123,710.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,010 : 376,435.16 = 82,491.44 : x
  2. Step 2: Convert to fraction form
    251,010/376,435.16 = 82,491.44/x
  3. Step 3: Cross multiply
    251,010x = 376,435.16 × 82,491.44
  4. Step 4: Simplify right side
    251,010x = 31,052,678,415.03
  5. Step 5: Solve for x
    x = 31,052,678,415.03/251,010
  6. Step 6: Final answer
    x = 123,710.92

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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.