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Finding the Fourth Proportional to 170,826.20, 256,239.30 and 161,640.80

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Solution

The fourth proportional to 170,826.20, 256,239.30 and 161,640.80 is: 242,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,826.20 : 256,239.30 = 161,640.80 : x
  2. Step 2: Convert to fraction form
    170,826.20/256,239.30 = 161,640.80/x
  3. Step 3: Cross multiply
    170,826.20x = 256,239.30 × 161,640.80
  4. Step 4: Simplify right side
    170,826.20x = 41,418,725,443.44
  5. Step 5: Solve for x
    x = 41,418,725,443.44/170,826.20
  6. Step 6: Final answer
    x = 242,461.20

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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.