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Finding the Fourth Proportional to 300,804.78, 451,184.61 and 87,574.33

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Solution

The fourth proportional to 300,804.78, 451,184.61 and 87,574.33 is: 131,354.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,804.78 : 451,184.61 = 87,574.33 : x
  2. Step 2: Convert to fraction form
    300,804.78/451,184.61 = 87,574.33/x
  3. Step 3: Cross multiply
    300,804.78x = 451,184.61 × 87,574.33
  4. Step 4: Simplify right side
    300,804.78x = 39,512,189,927.06
  5. Step 5: Solve for x
    x = 39,512,189,927.06/300,804.78
  6. Step 6: Final answer
    x = 131,354.93

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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.