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Finding the Fourth Proportional to 339,580.02, 509,369.48 and 90,262.02

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Solution

The fourth proportional to 339,580.02, 509,369.48 and 90,262.02 is: 135,392.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,580.02 : 509,369.48 = 90,262.02 : x
  2. Step 2: Convert to fraction form
    339,580.02/509,369.48 = 90,262.02/x
  3. Step 3: Cross multiply
    339,580.02x = 509,369.48 × 90,262.02
  4. Step 4: Simplify right side
    339,580.02x = 45,976,718,191.15
  5. Step 5: Solve for x
    x = 45,976,718,191.15/339,580.02
  6. Step 6: Final answer
    x = 135,392.88

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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.