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Finding the Fourth Proportional to 339,601.15, 509,401.73 and 102,913.08

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Solution

The fourth proportional to 339,601.15, 509,401.73 and 102,913.08 is: 154,369.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,601.15 : 509,401.73 = 102,913.08 : x
  2. Step 2: Convert to fraction form
    339,601.15/509,401.73 = 102,913.08/x
  3. Step 3: Cross multiply
    339,601.15x = 509,401.73 × 102,913.08
  4. Step 4: Simplify right side
    339,601.15x = 52,424,100,991.63
  5. Step 5: Solve for x
    x = 52,424,100,991.63/339,601.15
  6. Step 6: Final answer
    x = 154,369.62

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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.