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Finding the Fourth Proportional to 228,358.65, 315,058.12 and 132,786.75

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Solution

The fourth proportional to 228,358.65, 315,058.12 and 132,786.75 is: 183,201.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,358.65 : 315,058.12 = 132,786.75 : x
  2. Step 2: Convert to fraction form
    228,358.65/315,058.12 = 132,786.75/x
  3. Step 3: Cross multiply
    228,358.65x = 315,058.12 × 132,786.75
  4. Step 4: Simplify right side
    228,358.65x = 41,835,543,815.91
  5. Step 5: Solve for x
    x = 41,835,543,815.91/228,358.65
  6. Step 6: Final answer
    x = 183,201.05

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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.