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Finding the Fourth Proportional to 300,580.32, 450,900.03 and 87,350.09

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Solution

The fourth proportional to 300,580.32, 450,900.03 and 87,350.09 is: 131,033.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,580.32 : 450,900.03 = 87,350.09 : x
  2. Step 2: Convert to fraction form
    300,580.32/450,900.03 = 87,350.09/x
  3. Step 3: Cross multiply
    300,580.32x = 450,900.03 × 87,350.09
  4. Step 4: Simplify right side
    300,580.32x = 39,386,155,947.00
  5. Step 5: Solve for x
    x = 39,386,155,947.00/300,580.32
  6. Step 6: Final answer
    x = 131,033.71

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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.