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Finding the Fourth Proportional to 663,337.31, 995,016.77 and 190,020.83

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Solution

The fourth proportional to 663,337.31, 995,016.77 and 190,020.83 is: 285,034.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,337.31 : 995,016.77 = 190,020.83 : x
  2. Step 2: Convert to fraction form
    663,337.31/995,016.77 = 190,020.83/x
  3. Step 3: Cross multiply
    663,337.31x = 995,016.77 × 190,020.83
  4. Step 4: Simplify right side
    663,337.31x = 189,073,915,461.91
  5. Step 5: Solve for x
    x = 189,073,915,461.91/663,337.31
  6. Step 6: Final answer
    x = 285,034.34

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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.