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Finding the Fourth Proportional to 441,639.34, 662,469.90 and 161,156.50

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Solution

The fourth proportional to 441,639.34, 662,469.90 and 161,156.50 is: 241,738.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,639.34 : 662,469.90 = 161,156.50 : x
  2. Step 2: Convert to fraction form
    441,639.34/662,469.90 = 161,156.50/x
  3. Step 3: Cross multiply
    441,639.34x = 662,469.90 × 161,156.50
  4. Step 4: Simplify right side
    441,639.34x = 106,761,330,439.35
  5. Step 5: Solve for x
    x = 106,761,330,439.35/441,639.34
  6. Step 6: Final answer
    x = 241,738.72

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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.