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Finding the Fourth Proportional to 228,883.82, 315,863.46 and 126,913.58

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Solution

The fourth proportional to 228,883.82, 315,863.46 and 126,913.58 is: 175,142.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,883.82 : 315,863.46 = 126,913.58 : x
  2. Step 2: Convert to fraction form
    228,883.82/315,863.46 = 126,913.58/x
  3. Step 3: Cross multiply
    228,883.82x = 315,863.46 × 126,913.58
  4. Step 4: Simplify right side
    228,883.82x = 40,087,362,499.79
  5. Step 5: Solve for x
    x = 40,087,362,499.79/228,883.82
  6. Step 6: Final answer
    x = 175,142.84

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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.