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Finding the Fourth Proportional to 228,593.61, 315,429.30 and 131,801.09

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Solution

The fourth proportional to 228,593.61, 315,429.30 and 131,801.09 is: 181,868.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,593.61 : 315,429.30 = 131,801.09 : x
  2. Step 2: Convert to fraction form
    228,593.61/315,429.30 = 131,801.09/x
  3. Step 3: Cross multiply
    228,593.61x = 315,429.30 × 131,801.09
  4. Step 4: Simplify right side
    228,593.61x = 41,573,926,605.78
  5. Step 5: Solve for x
    x = 41,573,926,605.78/228,593.61
  6. Step 6: Final answer
    x = 181,868.28

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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.