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Finding the Fourth Proportional to 171,232.79, 256,850.92 and 76,467.80

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Solution

The fourth proportional to 171,232.79, 256,850.92 and 76,467.80 is: 114,702.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,232.79 : 256,850.92 = 76,467.80 : x
  2. Step 2: Convert to fraction form
    171,232.79/256,850.92 = 76,467.80/x
  3. Step 3: Cross multiply
    171,232.79x = 256,850.92 × 76,467.80
  4. Step 4: Simplify right side
    171,232.79x = 19,640,824,780.38
  5. Step 5: Solve for x
    x = 19,640,824,780.38/171,232.79
  6. Step 6: Final answer
    x = 114,702.47

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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.