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Finding the Fourth Proportional to 315,076.84, 434,788.97 and 179,091.91

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Solution

The fourth proportional to 315,076.84, 434,788.97 and 179,091.91 is: 247,137.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,076.84 : 434,788.97 = 179,091.91 : x
  2. Step 2: Convert to fraction form
    315,076.84/434,788.97 = 179,091.91/x
  3. Step 3: Cross multiply
    315,076.84x = 434,788.97 × 179,091.91
  4. Step 4: Simplify right side
    315,076.84x = 77,867,186,732.26
  5. Step 5: Solve for x
    x = 77,867,186,732.26/315,076.84
  6. Step 6: Final answer
    x = 247,137.13

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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.