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Finding the Fourth Proportional to 188,898.39, 283,314.71 and 70,570.71

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Solution

The fourth proportional to 188,898.39, 283,314.71 and 70,570.71 is: 105,843.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,898.39 : 283,314.71 = 70,570.71 : x
  2. Step 2: Convert to fraction form
    188,898.39/283,314.71 = 70,570.71/x
  3. Step 3: Cross multiply
    188,898.39x = 283,314.71 × 70,570.71
  4. Step 4: Simplify right side
    188,898.39x = 19,993,719,885.29
  5. Step 5: Solve for x
    x = 19,993,719,885.29/188,898.39
  6. Step 6: Final answer
    x = 105,843.78

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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.