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Finding the Fourth Proportional to 300,483.87, 450,414.26 and 187,905.62

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Solution

The fourth proportional to 300,483.87, 450,414.26 and 187,905.62 is: 281,663.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,483.87 : 450,414.26 = 187,905.62 : x
  2. Step 2: Convert to fraction form
    300,483.87/450,414.26 = 187,905.62/x
  3. Step 3: Cross multiply
    300,483.87x = 450,414.26 × 187,905.62
  4. Step 4: Simplify right side
    300,483.87x = 84,635,368,530.07
  5. Step 5: Solve for x
    x = 84,635,368,530.07/300,483.87
  6. Step 6: Final answer
    x = 281,663.60

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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.