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Finding the Fourth Proportional to 339,690.56, 509,537.04 and 103,035.28

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Solution

The fourth proportional to 339,690.56, 509,537.04 and 103,035.28 is: 154,553.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,690.56 : 509,537.04 = 103,035.28 : x
  2. Step 2: Convert to fraction form
    339,690.56/509,537.04 = 103,035.28/x
  3. Step 3: Cross multiply
    339,690.56x = 509,537.04 × 103,035.28
  4. Step 4: Simplify right side
    339,690.56x = 52,500,291,586.77
  5. Step 5: Solve for x
    x = 52,500,291,586.77/339,690.56
  6. Step 6: Final answer
    x = 154,553.28

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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.