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Finding the Fourth Proportional to 208,652.33, 287,936.80 and 118,004.89

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Solution

The fourth proportional to 208,652.33, 287,936.80 and 118,004.89 is: 162,844.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,652.33 : 287,936.80 = 118,004.89 : x
  2. Step 2: Convert to fraction form
    208,652.33/287,936.80 = 118,004.89/x
  3. Step 3: Cross multiply
    208,652.33x = 287,936.80 × 118,004.89
  4. Step 4: Simplify right side
    208,652.33x = 33,977,950,410.95
  5. Step 5: Solve for x
    x = 33,977,950,410.95/208,652.33
  6. Step 6: Final answer
    x = 162,844.82

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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.