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Finding the Fourth Proportional to 228,289.52, 315,048.81 and 126,313.32

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Solution

The fourth proportional to 228,289.52, 315,048.81 and 126,313.32 is: 174,317.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,289.52 : 315,048.81 = 126,313.32 : x
  2. Step 2: Convert to fraction form
    228,289.52/315,048.81 = 126,313.32/x
  3. Step 3: Cross multiply
    228,289.52x = 315,048.81 × 126,313.32
  4. Step 4: Simplify right side
    228,289.52x = 39,794,861,153.15
  5. Step 5: Solve for x
    x = 39,794,861,153.15/228,289.52
  6. Step 6: Final answer
    x = 174,317.51

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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.