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Finding the Fourth Proportional to 192,399, 288,602.82 and 66,039

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Solution

The fourth proportional to 192,399, 288,602.82 and 66,039 is: 99,059.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,399 : 288,602.82 = 66,039 : x
  2. Step 2: Convert to fraction form
    192,399/288,602.82 = 66,039/x
  3. Step 3: Cross multiply
    192,399x = 288,602.82 × 66,039
  4. Step 4: Simplify right side
    192,399x = 19,059,041,629.98
  5. Step 5: Solve for x
    x = 19,059,041,629.98/192,399
  6. Step 6: Final answer
    x = 99,059.98

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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.