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Finding the Fourth Proportional to 446,997.06, 670,635.54 and 147,687.90

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Solution

The fourth proportional to 446,997.06, 670,635.54 and 147,687.90 is: 221,578.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,997.06 : 670,635.54 = 147,687.90 : x
  2. Step 2: Convert to fraction form
    446,997.06/670,635.54 = 147,687.90/x
  3. Step 3: Cross multiply
    446,997.06x = 670,635.54 × 147,687.90
  4. Step 4: Simplify right side
    446,997.06x = 99,044,754,567.97
  5. Step 5: Solve for x
    x = 99,044,754,567.97/446,997.06
  6. Step 6: Final answer
    x = 221,578.09

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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.