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Finding the Fourth Proportional to 298,606.80, 447,910.20 and 88,241.70

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Solution

The fourth proportional to 298,606.80, 447,910.20 and 88,241.70 is: 132,362.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,606.80 : 447,910.20 = 88,241.70 : x
  2. Step 2: Convert to fraction form
    298,606.80/447,910.20 = 88,241.70/x
  3. Step 3: Cross multiply
    298,606.80x = 447,910.20 × 88,241.70
  4. Step 4: Simplify right side
    298,606.80x = 39,524,357,495.34
  5. Step 5: Solve for x
    x = 39,524,357,495.34/298,606.80
  6. Step 6: Final answer
    x = 132,362.55

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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.