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Finding the Fourth Proportional to 171,013.40, 256,520.10 and 168,680.60

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Solution

The fourth proportional to 171,013.40, 256,520.10 and 168,680.60 is: 253,020.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,013.40 : 256,520.10 = 168,680.60 : x
  2. Step 2: Convert to fraction form
    171,013.40/256,520.10 = 168,680.60/x
  3. Step 3: Cross multiply
    171,013.40x = 256,520.10 × 168,680.60
  4. Step 4: Simplify right side
    171,013.40x = 43,269,964,380.06
  5. Step 5: Solve for x
    x = 43,269,964,380.06/171,013.40
  6. Step 6: Final answer
    x = 253,020.90

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1.5x scale

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.