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Finding the Fourth Proportional to 192,591.49, 288,893.61 and 66,230.47

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Solution

The fourth proportional to 192,591.49, 288,893.61 and 66,230.47 is: 99,347.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,591.49 : 288,893.61 = 66,230.47 : x
  2. Step 2: Convert to fraction form
    192,591.49/288,893.61 = 66,230.47/x
  3. Step 3: Cross multiply
    192,591.49x = 288,893.61 × 66,230.47
  4. Step 4: Simplify right side
    192,591.49x = 19,133,559,570.30
  5. Step 5: Solve for x
    x = 19,133,559,570.30/192,591.49
  6. Step 6: Final answer
    x = 99,347.90

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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.