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Finding the Fourth Proportional to 281,792.76, 388,874.01 and 154,465.62

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Solution

The fourth proportional to 281,792.76, 388,874.01 and 154,465.62 is: 213,162.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,792.76 : 388,874.01 = 154,465.62 : x
  2. Step 2: Convert to fraction form
    281,792.76/388,874.01 = 154,465.62/x
  3. Step 3: Cross multiply
    281,792.76x = 388,874.01 × 154,465.62
  4. Step 4: Simplify right side
    281,792.76x = 60,067,663,112.17
  5. Step 5: Solve for x
    x = 60,067,663,112.17/281,792.76
  6. Step 6: Final answer
    x = 213,162.55

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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.