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Finding the Fourth Proportional to 170,453.90, 255,717.75 and 65,272.87

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Solution

The fourth proportional to 170,453.90, 255,717.75 and 65,272.87 is: 97,923.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,453.90 : 255,717.75 = 65,272.87 : x
  2. Step 2: Convert to fraction form
    170,453.90/255,717.75 = 65,272.87/x
  3. Step 3: Cross multiply
    170,453.90x = 255,717.75 × 65,272.87
  4. Step 4: Simplify right side
    170,453.90x = 16,691,430,173.85
  5. Step 5: Solve for x
    x = 16,691,430,173.85/170,453.90
  6. Step 6: Final answer
    x = 97,923.43

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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.