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Finding the Fourth Proportional to 414,005.55, 621,008.33 and 133,551.15

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Solution

The fourth proportional to 414,005.55, 621,008.33 and 133,551.15 is: 200,326.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,005.55 : 621,008.33 = 133,551.15 : x
  2. Step 2: Convert to fraction form
    414,005.55/621,008.33 = 133,551.15/x
  3. Step 3: Cross multiply
    414,005.55x = 621,008.33 × 133,551.15
  4. Step 4: Simplify right side
    414,005.55x = 82,936,375,963.32
  5. Step 5: Solve for x
    x = 82,936,375,963.32/414,005.55
  6. Step 6: Final answer
    x = 200,326.73

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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.