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Finding the Fourth Proportional to 170,234.40, 255,351.60 and 51,905.55

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Solution

The fourth proportional to 170,234.40, 255,351.60 and 51,905.55 is: 77,858.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,234.40 : 255,351.60 = 51,905.55 : x
  2. Step 2: Convert to fraction form
    170,234.40/255,351.60 = 51,905.55/x
  3. Step 3: Cross multiply
    170,234.40x = 255,351.60 × 51,905.55
  4. Step 4: Simplify right side
    170,234.40x = 13,254,165,241.38
  5. Step 5: Solve for x
    x = 13,254,165,241.38/170,234.40
  6. Step 6: Final answer
    x = 77,858.33

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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.