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Finding the Fourth Proportional to 276,829.88, 381,915.88 and 174,817.28

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Solution

The fourth proportional to 276,829.88, 381,915.88 and 174,817.28 is: 241,178.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,829.88 : 381,915.88 = 174,817.28 : x
  2. Step 2: Convert to fraction form
    276,829.88/381,915.88 = 174,817.28/x
  3. Step 3: Cross multiply
    276,829.88x = 381,915.88 × 174,817.28
  4. Step 4: Simplify right side
    276,829.88x = 66,765,495,330.41
  5. Step 5: Solve for x
    x = 66,765,495,330.41/276,829.88
  6. Step 6: Final answer
    x = 241,178.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.