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Finding the Fourth Proportional to 339,511.20, 509,319.63 and 102,797.52

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Solution

The fourth proportional to 339,511.20, 509,319.63 and 102,797.52 is: 154,212.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,511.20 : 509,319.63 = 102,797.52 : x
  2. Step 2: Convert to fraction form
    339,511.20/509,319.63 = 102,797.52/x
  3. Step 3: Cross multiply
    339,511.20x = 509,319.63 × 102,797.52
  4. Step 4: Simplify right side
    339,511.20x = 52,356,794,851.32
  5. Step 5: Solve for x
    x = 52,356,794,851.32/339,511.20
  6. Step 6: Final answer
    x = 154,212.28

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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.