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Finding the Fourth Proportional to 170,454, 255,717.91 and 65,272.97

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Solution

The fourth proportional to 170,454, 255,717.91 and 65,272.97 is: 97,923.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,454 : 255,717.91 = 65,272.97 : x
  2. Step 2: Convert to fraction form
    170,454/255,717.91 = 65,272.97/x
  3. Step 3: Cross multiply
    170,454x = 255,717.91 × 65,272.97
  4. Step 4: Simplify right side
    170,454x = 16,691,467,467.89
  5. Step 5: Solve for x
    x = 16,691,467,467.89/170,454
  6. Step 6: Final answer
    x = 97,923.59

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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.