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Finding the Fourth Proportional to 272,602.20, 408,903.30 and 197,952.60

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Solution

The fourth proportional to 272,602.20, 408,903.30 and 197,952.60 is: 296,928.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,602.20 : 408,903.30 = 197,952.60 : x
  2. Step 2: Convert to fraction form
    272,602.20/408,903.30 = 197,952.60/x
  3. Step 3: Cross multiply
    272,602.20x = 408,903.30 × 197,952.60
  4. Step 4: Simplify right side
    272,602.20x = 80,943,471,383.58
  5. Step 5: Solve for x
    x = 80,943,471,383.58/272,602.20
  6. Step 6: Final answer
    x = 296,928.90

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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.