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Finding the Fourth Proportional to 315,572.94, 435,472.86 and 179,639.97

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Solution

The fourth proportional to 315,572.94, 435,472.86 and 179,639.97 is: 247,893.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,572.94 : 435,472.86 = 179,639.97 : x
  2. Step 2: Convert to fraction form
    315,572.94/435,472.86 = 179,639.97/x
  3. Step 3: Cross multiply
    315,572.94x = 435,472.86 × 179,639.97
  4. Step 4: Simplify right side
    315,572.94x = 78,228,331,506.21
  5. Step 5: Solve for x
    x = 78,228,331,506.21/315,572.94
  6. Step 6: Final answer
    x = 247,893.03

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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.