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Finding the Fourth Proportional to 272,491.88, 408,765.69 and 104,153.90

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Solution

The fourth proportional to 272,491.88, 408,765.69 and 104,153.90 is: 156,241.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,491.88 : 408,765.69 = 104,153.90 : x
  2. Step 2: Convert to fraction form
    272,491.88/408,765.69 = 104,153.90/x
  3. Step 3: Cross multiply
    272,491.88x = 408,765.69 × 104,153.90
  4. Step 4: Simplify right side
    272,491.88x = 42,574,540,799.69
  5. Step 5: Solve for x
    x = 42,574,540,799.69/272,491.88
  6. Step 6: Final answer
    x = 156,241.50

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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.