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Finding the Fourth Proportional to 512,187.88, 768,673.86 and 231,901.96

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Solution

The fourth proportional to 512,187.88, 768,673.86 and 231,901.96 is: 348,030.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,187.88 : 768,673.86 = 231,901.96 : x
  2. Step 2: Convert to fraction form
    512,187.88/768,673.86 = 231,901.96/x
  3. Step 3: Cross multiply
    512,187.88x = 768,673.86 × 231,901.96
  4. Step 4: Simplify right side
    512,187.88x = 178,256,974,734.77
  5. Step 5: Solve for x
    x = 178,256,974,734.77/512,187.88
  6. Step 6: Final answer
    x = 348,030.44

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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.