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Finding the Fourth Proportional to 188,804.72, 283,207.88 and 76,487.12

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Solution

The fourth proportional to 188,804.72, 283,207.88 and 76,487.12 is: 114,731.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,804.72 : 283,207.88 = 76,487.12 : x
  2. Step 2: Convert to fraction form
    188,804.72/283,207.88 = 76,487.12/x
  3. Step 3: Cross multiply
    188,804.72x = 283,207.88 × 76,487.12
  4. Step 4: Simplify right side
    188,804.72x = 21,661,755,102.51
  5. Step 5: Solve for x
    x = 21,661,755,102.51/188,804.72
  6. Step 6: Final answer
    x = 114,731.00

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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.