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Finding the Fourth Proportional to 243,076.44, 335,391.93 and 141,042.78

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Solution

The fourth proportional to 243,076.44, 335,391.93 and 141,042.78 is: 194,607.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,076.44 : 335,391.93 = 141,042.78 : x
  2. Step 2: Convert to fraction form
    243,076.44/335,391.93 = 141,042.78/x
  3. Step 3: Cross multiply
    243,076.44x = 335,391.93 × 141,042.78
  4. Step 4: Simplify right side
    243,076.44x = 47,304,610,196.77
  5. Step 5: Solve for x
    x = 47,304,610,196.77/243,076.44
  6. Step 6: Final answer
    x = 194,607.96

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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.