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Finding the Fourth Proportional to 228,735.77, 315,662.40 and 126,751.77

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Solution

The fourth proportional to 228,735.77, 315,662.40 and 126,751.77 is: 174,921.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,735.77 : 315,662.40 = 126,751.77 : x
  2. Step 2: Convert to fraction form
    228,735.77/315,662.40 = 126,751.77/x
  3. Step 3: Cross multiply
    228,735.77x = 315,662.40 × 126,751.77
  4. Step 4: Simplify right side
    228,735.77x = 40,010,767,922.45
  5. Step 5: Solve for x
    x = 40,010,767,922.45/228,735.77
  6. Step 6: Final answer
    x = 174,921.35

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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.