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Finding the Fourth Proportional to 179,673.40, 268,991.70 and 109,689.40

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Solution

The fourth proportional to 179,673.40, 268,991.70 and 109,689.40 is: 164,217.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,673.40 : 268,991.70 = 109,689.40 : x
  2. Step 2: Convert to fraction form
    179,673.40/268,991.70 = 109,689.40/x
  3. Step 3: Cross multiply
    179,673.40x = 268,991.70 × 109,689.40
  4. Step 4: Simplify right side
    179,673.40x = 29,505,538,177.98
  5. Step 5: Solve for x
    x = 29,505,538,177.98/179,673.40
  6. Step 6: Final answer
    x = 164,217.62

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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.