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Finding the Fourth Proportional to 339,747.60, 510,010.20 and 199,585.20

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Solution

The fourth proportional to 339,747.60, 510,010.20 and 199,585.20 is: 299,606.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,747.60 : 510,010.20 = 199,585.20 : x
  2. Step 2: Convert to fraction form
    339,747.60/510,010.20 = 199,585.20/x
  3. Step 3: Cross multiply
    339,747.60x = 510,010.20 × 199,585.20
  4. Step 4: Simplify right side
    339,747.60x = 101,790,487,769.04
  5. Step 5: Solve for x
    x = 101,790,487,769.04/339,747.60
  6. Step 6: Final answer
    x = 299,606.20

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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.