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Finding the Fourth Proportional to 281,812.97, 388,893.86 and 160,951.76

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Solution

The fourth proportional to 281,812.97, 388,893.86 and 160,951.76 is: 222,108.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,812.97 : 388,893.86 = 160,951.76 : x
  2. Step 2: Convert to fraction form
    281,812.97/388,893.86 = 160,951.76/x
  3. Step 3: Cross multiply
    281,812.97x = 388,893.86 × 160,951.76
  4. Step 4: Simplify right side
    281,812.97x = 62,593,150,532.89
  5. Step 5: Solve for x
    x = 62,593,150,532.89/281,812.97
  6. Step 6: Final answer
    x = 222,108.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.