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Finding the Fourth Proportional to 258,672.02, 356,963.73 and 145,494.50

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Solution

The fourth proportional to 258,672.02, 356,963.73 and 145,494.50 is: 200,780.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,672.02 : 356,963.73 = 145,494.50 : x
  2. Step 2: Convert to fraction form
    258,672.02/356,963.73 = 145,494.50/x
  3. Step 3: Cross multiply
    258,672.02x = 356,963.73 × 145,494.50
  4. Step 4: Simplify right side
    258,672.02x = 51,936,259,414.49
  5. Step 5: Solve for x
    x = 51,936,259,414.49/258,672.02
  6. Step 6: Final answer
    x = 200,780.35

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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.