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Finding the Fourth Proportional to 219,786.72, 303,285.24 and 124,293.12

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Solution

The fourth proportional to 219,786.72, 303,285.24 and 124,293.12 is: 171,512.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,786.72 : 303,285.24 = 124,293.12 : x
  2. Step 2: Convert to fraction form
    219,786.72/303,285.24 = 124,293.12/x
  3. Step 3: Cross multiply
    219,786.72x = 303,285.24 × 124,293.12
  4. Step 4: Simplify right side
    219,786.72x = 37,696,268,729.55
  5. Step 5: Solve for x
    x = 37,696,268,729.55/219,786.72
  6. Step 6: Final answer
    x = 171,512.95

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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.