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Finding the Fourth Proportional to 300,758.16, 451,137.88 and 120,926.48

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Solution

The fourth proportional to 300,758.16, 451,137.88 and 120,926.48 is: 181,389.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,758.16 : 451,137.88 = 120,926.48 : x
  2. Step 2: Convert to fraction form
    300,758.16/451,137.88 = 120,926.48/x
  3. Step 3: Cross multiply
    300,758.16x = 451,137.88 × 120,926.48
  4. Step 4: Simplify right side
    300,758.16x = 54,554,515,823.06
  5. Step 5: Solve for x
    x = 54,554,515,823.06/300,758.16
  6. Step 6: Final answer
    x = 181,389.98

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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.