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Finding the Fourth Proportional to 335,414.28, 503,121.78 and 86,096.28

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Solution

The fourth proportional to 335,414.28, 503,121.78 and 86,096.28 is: 129,144.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,414.28 : 503,121.78 = 86,096.28 : x
  2. Step 2: Convert to fraction form
    335,414.28/503,121.78 = 86,096.28/x
  3. Step 3: Cross multiply
    335,414.28x = 503,121.78 × 86,096.28
  4. Step 4: Simplify right side
    335,414.28x = 43,316,913,644.98
  5. Step 5: Solve for x
    x = 43,316,913,644.98/335,414.28
  6. Step 6: Final answer
    x = 129,144.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.