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Finding the Fourth Proportional to 339,757.52, 509,639.35 and 103,100.20

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Solution

The fourth proportional to 339,757.52, 509,639.35 and 103,100.20 is: 154,651.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,757.52 : 509,639.35 = 103,100.20 : x
  2. Step 2: Convert to fraction form
    339,757.52/509,639.35 = 103,100.20/x
  3. Step 3: Cross multiply
    339,757.52x = 509,639.35 × 103,100.20
  4. Step 4: Simplify right side
    339,757.52x = 52,543,921,146.21
  5. Step 5: Solve for x
    x = 52,543,921,146.21/339,757.52
  6. Step 6: Final answer
    x = 154,651.24

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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.