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Finding the Fourth Proportional to 179,628.79, 269,464.67 and 72,989.97

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Solution

The fourth proportional to 179,628.79, 269,464.67 and 72,989.97 is: 109,493.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,628.79 : 269,464.67 = 72,989.97 : x
  2. Step 2: Convert to fraction form
    179,628.79/269,464.67 = 72,989.97/x
  3. Step 3: Cross multiply
    179,628.79x = 269,464.67 × 72,989.97
  4. Step 4: Simplify right side
    179,628.79x = 19,668,218,179.36
  5. Step 5: Solve for x
    x = 19,668,218,179.36/179,628.79
  6. Step 6: Final answer
    x = 109,493.69

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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.