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Finding the Fourth Proportional to 315,061.80, 434,768.01 and 179,076.88

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Solution

The fourth proportional to 315,061.80, 434,768.01 and 179,076.88 is: 247,116.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,061.80 : 434,768.01 = 179,076.88 : x
  2. Step 2: Convert to fraction form
    315,061.80/434,768.01 = 179,076.88/x
  3. Step 3: Cross multiply
    315,061.80x = 434,768.01 × 179,076.88
  4. Step 4: Simplify right side
    315,061.80x = 77,856,896,180.96
  5. Step 5: Solve for x
    x = 77,856,896,180.96/315,061.80
  6. Step 6: Final answer
    x = 247,116.27

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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.