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Finding the Fourth Proportional to 347,108.94, 479,013.84 and 203,871.36

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Solution

The fourth proportional to 347,108.94, 479,013.84 and 203,871.36 is: 281,344.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,108.94 : 479,013.84 = 203,871.36 : x
  2. Step 2: Convert to fraction form
    347,108.94/479,013.84 = 203,871.36/x
  3. Step 3: Cross multiply
    347,108.94x = 479,013.84 × 203,871.36
  4. Step 4: Simplify right side
    347,108.94x = 97,657,203,019.62
  5. Step 5: Solve for x
    x = 97,657,203,019.62/347,108.94
  6. Step 6: Final answer
    x = 281,344.53

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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.