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Finding the Fourth Proportional to 335,394.78, 503,092.53 and 86,076.78

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Solution

The fourth proportional to 335,394.78, 503,092.53 and 86,076.78 is: 129,115.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,394.78 : 503,092.53 = 86,076.78 : x
  2. Step 2: Convert to fraction form
    335,394.78/503,092.53 = 86,076.78/x
  3. Step 3: Cross multiply
    335,394.78x = 503,092.53 × 86,076.78
  4. Step 4: Simplify right side
    335,394.78x = 43,304,585,024.45
  5. Step 5: Solve for x
    x = 43,304,585,024.45/335,394.78
  6. Step 6: Final answer
    x = 129,115.26

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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.