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Finding the Fourth Proportional to 266,006.40, 399,027.60 and 108,237.60

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Solution

The fourth proportional to 266,006.40, 399,027.60 and 108,237.60 is: 162,363.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,006.40 : 399,027.60 = 108,237.60 : x
  2. Step 2: Convert to fraction form
    266,006.40/399,027.60 = 108,237.60/x
  3. Step 3: Cross multiply
    266,006.40x = 399,027.60 × 108,237.60
  4. Step 4: Simplify right side
    266,006.40x = 43,189,789,757.76
  5. Step 5: Solve for x
    x = 43,189,789,757.76/266,006.40
  6. Step 6: Final answer
    x = 162,363.72

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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.