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Finding the Fourth Proportional to 228,355.41, 315,125.94 and 126,374.94

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Solution

The fourth proportional to 228,355.41, 315,125.94 and 126,374.94 is: 174,394.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,355.41 : 315,125.94 = 126,374.94 : x
  2. Step 2: Convert to fraction form
    228,355.41/315,125.94 = 126,374.94/x
  3. Step 3: Cross multiply
    228,355.41x = 315,125.94 × 126,374.94
  4. Step 4: Simplify right side
    228,355.41x = 39,824,021,759.94
  5. Step 5: Solve for x
    x = 39,824,021,759.94/228,355.41
  6. Step 6: Final answer
    x = 174,394.91

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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.