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Finding the Fourth Proportional to 339,881.92, 509,890.94 and 190,334.88

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Solution

The fourth proportional to 339,881.92, 509,890.94 and 190,334.88 is: 285,540.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,881.92 : 509,890.94 = 190,334.88 : x
  2. Step 2: Convert to fraction form
    339,881.92/509,890.94 = 190,334.88/x
  3. Step 3: Cross multiply
    339,881.92x = 509,890.94 × 190,334.88
  4. Step 4: Simplify right side
    339,881.92x = 97,050,030,877.99
  5. Step 5: Solve for x
    x = 97,050,030,877.99/339,881.92
  6. Step 6: Final answer
    x = 285,540.43

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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.