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Finding the Fourth Proportional to 227,428.62, 313,878.60 and 131,938.53

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Solution

The fourth proportional to 227,428.62, 313,878.60 and 131,938.53 is: 182,090.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,428.62 : 313,878.60 = 131,938.53 : x
  2. Step 2: Convert to fraction form
    227,428.62/313,878.60 = 131,938.53/x
  3. Step 3: Cross multiply
    227,428.62x = 313,878.60 × 131,938.53
  4. Step 4: Simplify right side
    227,428.62x = 41,412,681,082.46
  5. Step 5: Solve for x
    x = 41,412,681,082.46/227,428.62
  6. Step 6: Final answer
    x = 182,090.90

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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.