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Finding the Fourth Proportional to 188,903.04, 283,323.80 and 76,578.72

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Solution

The fourth proportional to 188,903.04, 283,323.80 and 76,578.72 is: 114,855.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,903.04 : 283,323.80 = 76,578.72 : x
  2. Step 2: Convert to fraction form
    188,903.04/283,323.80 = 76,578.72/x
  3. Step 3: Cross multiply
    188,903.04x = 283,323.80 × 76,578.72
  4. Step 4: Simplify right side
    188,903.04x = 21,696,572,863.14
  5. Step 5: Solve for x
    x = 21,696,572,863.14/188,903.04
  6. Step 6: Final answer
    x = 114,855.61

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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.