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Finding the Fourth Proportional to 179,439.40, 269,450.70 and 129,867.40

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Solution

The fourth proportional to 179,439.40, 269,450.70 and 129,867.40 is: 195,012.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,439.40 : 269,450.70 = 129,867.40 : x
  2. Step 2: Convert to fraction form
    179,439.40/269,450.70 = 129,867.40/x
  3. Step 3: Cross multiply
    179,439.40x = 269,450.70 × 129,867.40
  4. Step 4: Simplify right side
    179,439.40x = 34,992,861,837.18
  5. Step 5: Solve for x
    x = 34,992,861,837.18/179,439.40
  6. Step 6: Final answer
    x = 195,012.14

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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.