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Finding the Fourth Proportional to 185,318.88, 277,975.08 and 45,078.72

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Solution

The fourth proportional to 185,318.88, 277,975.08 and 45,078.72 is: 67,617.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,318.88 : 277,975.08 = 45,078.72 : x
  2. Step 2: Convert to fraction form
    185,318.88/277,975.08 = 45,078.72/x
  3. Step 3: Cross multiply
    185,318.88x = 277,975.08 × 45,078.72
  4. Step 4: Simplify right side
    185,318.88x = 12,530,760,798.30
  5. Step 5: Solve for x
    x = 12,530,760,798.30/185,318.88
  6. Step 6: Final answer
    x = 67,617.29

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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.