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Finding the Fourth Proportional to 228,981.96, 315,983.96 and 126,998.39

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Solution

The fourth proportional to 228,981.96, 315,983.96 and 126,998.39 is: 175,251.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,981.96 : 315,983.96 = 126,998.39 : x
  2. Step 2: Convert to fraction form
    228,981.96/315,983.96 = 126,998.39/x
  3. Step 3: Cross multiply
    228,981.96x = 315,983.96 × 126,998.39
  4. Step 4: Simplify right side
    228,981.96x = 40,129,454,340.79
  5. Step 5: Solve for x
    x = 40,129,454,340.79/228,981.96
  6. Step 6: Final answer
    x = 175,251.60

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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.