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Finding the Fourth Proportional to 228,989.76, 315,946.08 and 132,169.92

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Solution

The fourth proportional to 228,989.76, 315,946.08 and 132,169.92 is: 182,359.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,989.76 : 315,946.08 = 132,169.92 : x
  2. Step 2: Convert to fraction form
    228,989.76/315,946.08 = 132,169.92/x
  3. Step 3: Cross multiply
    228,989.76x = 315,946.08 × 132,169.92
  4. Step 4: Simplify right side
    228,989.76x = 41,758,568,117.91
  5. Step 5: Solve for x
    x = 41,758,568,117.91/228,989.76
  6. Step 6: Final answer
    x = 182,359.98

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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.