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Finding the Fourth Proportional to 228,727.46, 315,644.64 and 126,754.60

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Solution

The fourth proportional to 228,727.46, 315,644.64 and 126,754.60 is: 174,921.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,727.46 : 315,644.64 = 126,754.60 : x
  2. Step 2: Convert to fraction form
    228,727.46/315,644.64 = 126,754.60/x
  3. Step 3: Cross multiply
    228,727.46x = 315,644.64 × 126,754.60
  4. Step 4: Simplify right side
    228,727.46x = 40,009,409,451.57
  5. Step 5: Solve for x
    x = 40,009,409,451.57/228,727.46
  6. Step 6: Final answer
    x = 174,921.76

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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.