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Finding the Fourth Proportional to 258,195.42, 387,282.60 and 89,753.94

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Solution

The fourth proportional to 258,195.42, 387,282.60 and 89,753.94 is: 134,627.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,195.42 : 387,282.60 = 89,753.94 : x
  2. Step 2: Convert to fraction form
    258,195.42/387,282.60 = 89,753.94/x
  3. Step 3: Cross multiply
    258,195.42x = 387,282.60 × 89,753.94
  4. Step 4: Simplify right side
    258,195.42x = 34,760,139,243.44
  5. Step 5: Solve for x
    x = 34,760,139,243.44/258,195.42
  6. Step 6: Final answer
    x = 134,627.25

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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.