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Finding the Fourth Proportional to 272,611.58, 408,884.90 and 72,947.39

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Solution

The fourth proportional to 272,611.58, 408,884.90 and 72,947.39 is: 109,412.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,611.58 : 408,884.90 = 72,947.39 : x
  2. Step 2: Convert to fraction form
    272,611.58/408,884.90 = 72,947.39/x
  3. Step 3: Cross multiply
    272,611.58x = 408,884.90 × 72,947.39
  4. Step 4: Simplify right side
    272,611.58x = 29,827,086,265.41
  5. Step 5: Solve for x
    x = 29,827,086,265.41/272,611.58
  6. Step 6: Final answer
    x = 109,412.40

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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.