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Finding the Fourth Proportional to 636,243.26, 954,339.96 and 215,519.14

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Solution

The fourth proportional to 636,243.26, 954,339.96 and 215,519.14 is: 323,270.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,243.26 : 954,339.96 = 215,519.14 : x
  2. Step 2: Convert to fraction form
    636,243.26/954,339.96 = 215,519.14/x
  3. Step 3: Cross multiply
    636,243.26x = 954,339.96 × 215,519.14
  4. Step 4: Simplify right side
    636,243.26x = 205,678,527,446.83
  5. Step 5: Solve for x
    x = 205,678,527,446.83/636,243.26
  6. Step 6: Final answer
    x = 323,270.27

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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.