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Finding the Fourth Proportional to 445,519.71, 668,124 and 179,211.15

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Solution

The fourth proportional to 445,519.71, 668,124 and 179,211.15 is: 268,754.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,519.71 : 668,124 = 179,211.15 : x
  2. Step 2: Convert to fraction form
    445,519.71/668,124 = 179,211.15/x
  3. Step 3: Cross multiply
    445,519.71x = 668,124 × 179,211.15
  4. Step 4: Simplify right side
    445,519.71x = 119,735,270,382.60
  5. Step 5: Solve for x
    x = 119,735,270,382.60/445,519.71
  6. Step 6: Final answer
    x = 268,754.15

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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.