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Finding the Fourth Proportional to 171,660.56, 257,441.63 and 51,729.12

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Solution

The fourth proportional to 171,660.56, 257,441.63 and 51,729.12 is: 77,578.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,660.56 : 257,441.63 = 51,729.12 : x
  2. Step 2: Convert to fraction form
    171,660.56/257,441.63 = 51,729.12/x
  3. Step 3: Cross multiply
    171,660.56x = 257,441.63 × 51,729.12
  4. Step 4: Simplify right side
    171,660.56x = 13,317,228,712.62
  5. Step 5: Solve for x
    x = 13,317,228,712.62/171,660.56
  6. Step 6: Final answer
    x = 77,578.85

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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.