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Finding the Fourth Proportional to 185,211.54, 277,026.12 and 154,630.80

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Solution

The fourth proportional to 185,211.54, 277,026.12 and 154,630.80 is: 231,285.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,211.54 : 277,026.12 = 154,630.80 : x
  2. Step 2: Convert to fraction form
    185,211.54/277,026.12 = 154,630.80/x
  3. Step 3: Cross multiply
    185,211.54x = 277,026.12 × 154,630.80
  4. Step 4: Simplify right side
    185,211.54x = 42,836,770,556.50
  5. Step 5: Solve for x
    x = 42,836,770,556.50/185,211.54
  6. Step 6: Final answer
    x = 231,285.65

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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.