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Finding the Fourth Proportional to 445,359.17, 668,040.11 and 108,399.84

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Solution

The fourth proportional to 445,359.17, 668,040.11 and 108,399.84 is: 162,600.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,359.17 : 668,040.11 = 108,399.84 : x
  2. Step 2: Convert to fraction form
    445,359.17/668,040.11 = 108,399.84/x
  3. Step 3: Cross multiply
    445,359.17x = 668,040.11 × 108,399.84
  4. Step 4: Simplify right side
    445,359.17x = 72,415,440,495.58
  5. Step 5: Solve for x
    x = 72,415,440,495.58/445,359.17
  6. Step 6: Final answer
    x = 162,600.09

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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.