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Finding the Fourth Proportional to 329,679.60, 494,130.60 and 171,826.80

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Solution

The fourth proportional to 329,679.60, 494,130.60 and 171,826.80 is: 257,537.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,679.60 : 494,130.60 = 171,826.80 : x
  2. Step 2: Convert to fraction form
    329,679.60/494,130.60 = 171,826.80/x
  3. Step 3: Cross multiply
    329,679.60x = 494,130.60 × 171,826.80
  4. Step 4: Simplify right side
    329,679.60x = 84,904,879,780.08
  5. Step 5: Solve for x
    x = 84,904,879,780.08/329,679.60
  6. Step 6: Final answer
    x = 257,537.56

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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.