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Finding the Fourth Proportional to 281,817.73, 388,900.39 and 160,956.52

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Solution

The fourth proportional to 281,817.73, 388,900.39 and 160,956.52 is: 222,115.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,817.73 : 388,900.39 = 160,956.52 : x
  2. Step 2: Convert to fraction form
    281,817.73/388,900.39 = 160,956.52/x
  3. Step 3: Cross multiply
    281,817.73x = 388,900.39 × 160,956.52
  4. Step 4: Simplify right side
    281,817.73x = 62,596,053,401.04
  5. Step 5: Solve for x
    x = 62,596,053,401.04/281,817.73
  6. Step 6: Final answer
    x = 222,115.38

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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.