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Finding the Fourth Proportional to 185,016.80, 277,403.70 and 72,629.30

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Solution

The fourth proportional to 185,016.80, 277,403.70 and 72,629.30 is: 108,896.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,016.80 : 277,403.70 = 72,629.30 : x
  2. Step 2: Convert to fraction form
    185,016.80/277,403.70 = 72,629.30/x
  3. Step 3: Cross multiply
    185,016.80x = 277,403.70 × 72,629.30
  4. Step 4: Simplify right side
    185,016.80x = 20,147,636,548.41
  5. Step 5: Solve for x
    x = 20,147,636,548.41/185,016.80
  6. Step 6: Final answer
    x = 108,896.25

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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.