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Finding the Fourth Proportional to 272,627.88, 408,610.24 and 145,956.84

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Solution

The fourth proportional to 272,627.88, 408,610.24 and 145,956.84 is: 218,757.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,627.88 : 408,610.24 = 145,956.84 : x
  2. Step 2: Convert to fraction form
    272,627.88/408,610.24 = 145,956.84/x
  3. Step 3: Cross multiply
    272,627.88x = 408,610.24 × 145,956.84
  4. Step 4: Simplify right side
    272,627.88x = 59,639,459,422.04
  5. Step 5: Solve for x
    x = 59,639,459,422.04/272,627.88
  6. Step 6: Final answer
    x = 218,757.74

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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.