Home / 285,431.62-393,705.78-183,585.96

Finding the Fourth Proportional to 285,431.62, 393,705.78 and 183,585.96

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Solution

The fourth proportional to 285,431.62, 393,705.78 and 183,585.96 is: 253,226.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,431.62 : 393,705.78 = 183,585.96 : x
  2. Step 2: Convert to fraction form
    285,431.62/393,705.78 = 183,585.96/x
  3. Step 3: Cross multiply
    285,431.62x = 393,705.78 × 183,585.96
  4. Step 4: Simplify right side
    285,431.62x = 72,278,853,578.85
  5. Step 5: Solve for x
    x = 72,278,853,578.85/285,431.62
  6. Step 6: Final answer
    x = 253,226.51

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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.