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Finding the Fourth Proportional to 219,954.59, 303,544.06 and 129,293.92

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Solution

The fourth proportional to 219,954.59, 303,544.06 and 129,293.92 is: 178,429.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,954.59 : 303,544.06 = 129,293.92 : x
  2. Step 2: Convert to fraction form
    219,954.59/303,544.06 = 129,293.92/x
  3. Step 3: Cross multiply
    219,954.59x = 303,544.06 × 129,293.92
  4. Step 4: Simplify right side
    219,954.59x = 39,246,401,466.31
  5. Step 5: Solve for x
    x = 39,246,401,466.31/219,954.59
  6. Step 6: Final answer
    x = 178,429.56

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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.