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Finding the Fourth Proportional to 547,269.69, 755,200.44 and 305,567.56

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Solution

The fourth proportional to 547,269.69, 755,200.44 and 305,567.56 is: 421,665.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,269.69 : 755,200.44 = 305,567.56 : x
  2. Step 2: Convert to fraction form
    547,269.69/755,200.44 = 305,567.56/x
  3. Step 3: Cross multiply
    547,269.69x = 755,200.44 × 305,567.56
  4. Step 4: Simplify right side
    547,269.69x = 230,764,757,970.32
  5. Step 5: Solve for x
    x = 230,764,757,970.32/547,269.69
  6. Step 6: Final answer
    x = 421,665.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.