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Finding the Fourth Proportional to 339,995.61, 469,209.80 and 196,727.94

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Solution

The fourth proportional to 339,995.61, 469,209.80 and 196,727.94 is: 271,493.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,995.61 : 469,209.80 = 196,727.94 : x
  2. Step 2: Convert to fraction form
    339,995.61/469,209.80 = 196,727.94/x
  3. Step 3: Cross multiply
    339,995.61x = 469,209.80 × 196,727.94
  4. Step 4: Simplify right side
    339,995.61x = 92,306,677,381.81
  5. Step 5: Solve for x
    x = 92,306,677,381.81/339,995.61
  6. Step 6: Final answer
    x = 271,493.73

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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.