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Finding the Fourth Proportional to 300,962.71, 451,591.98 and 121,040.95

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Solution

The fourth proportional to 300,962.71, 451,591.98 and 121,040.95 is: 181,620.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,962.71 : 451,591.98 = 121,040.95 : x
  2. Step 2: Convert to fraction form
    300,962.71/451,591.98 = 121,040.95/x
  3. Step 3: Cross multiply
    300,962.71x = 451,591.98 × 121,040.95
  4. Step 4: Simplify right side
    300,962.71x = 54,661,122,271.58
  5. Step 5: Solve for x
    x = 54,661,122,271.58/300,962.71
  6. Step 6: Final answer
    x = 181,620.91

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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.