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Finding the Fourth Proportional to 245,198.96, 367,537.08 and 139,790.96

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Solution

The fourth proportional to 245,198.96, 367,537.08 and 139,790.96 is: 209,537.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,198.96 : 367,537.08 = 139,790.96 : x
  2. Step 2: Convert to fraction form
    245,198.96/367,537.08 = 139,790.96/x
  3. Step 3: Cross multiply
    245,198.96x = 367,537.08 × 139,790.96
  4. Step 4: Simplify right side
    245,198.96x = 51,378,361,248.80
  5. Step 5: Solve for x
    x = 51,378,361,248.80/245,198.96
  6. Step 6: Final answer
    x = 209,537.44

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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.