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Finding the Fourth Proportional to 317,289.11, 437,854.88 and 181,321.49

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Solution

The fourth proportional to 317,289.11, 437,854.88 and 181,321.49 is: 250,221.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,289.11 : 437,854.88 = 181,321.49 : x
  2. Step 2: Convert to fraction form
    317,289.11/437,854.88 = 181,321.49/x
  3. Step 3: Cross multiply
    317,289.11x = 437,854.88 × 181,321.49
  4. Step 4: Simplify right side
    317,289.11x = 79,392,500,793.31
  5. Step 5: Solve for x
    x = 79,392,500,793.31/317,289.11
  6. Step 6: Final answer
    x = 250,221.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.