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Finding the Fourth Proportional to 228,474.57, 315,304.76 and 126,500.03

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Solution

The fourth proportional to 228,474.57, 315,304.76 and 126,500.03 is: 174,575.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,474.57 : 315,304.76 = 126,500.03 : x
  2. Step 2: Convert to fraction form
    228,474.57/315,304.76 = 126,500.03/x
  3. Step 3: Cross multiply
    228,474.57x = 315,304.76 × 126,500.03
  4. Step 4: Simplify right side
    228,474.57x = 39,886,059,390.12
  5. Step 5: Solve for x
    x = 39,886,059,390.12/228,474.57
  6. Step 6: Final answer
    x = 174,575.49

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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.