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Finding the Fourth Proportional to 171,229.38, 256,845.80 and 76,464.38

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Solution

The fourth proportional to 171,229.38, 256,845.80 and 76,464.38 is: 114,697.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,229.38 : 256,845.80 = 76,464.38 : x
  2. Step 2: Convert to fraction form
    171,229.38/256,845.80 = 76,464.38/x
  3. Step 3: Cross multiply
    171,229.38x = 256,845.80 × 76,464.38
  4. Step 4: Simplify right side
    171,229.38x = 19,639,554,852.60
  5. Step 5: Solve for x
    x = 19,639,554,852.60/171,229.38
  6. Step 6: Final answer
    x = 114,697.34

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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.