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Finding the Fourth Proportional to 206,855.94, 285,492.07 and 126,329.79

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Solution

The fourth proportional to 206,855.94, 285,492.07 and 126,329.79 is: 174,353.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,855.94 : 285,492.07 = 126,329.79 : x
  2. Step 2: Convert to fraction form
    206,855.94/285,492.07 = 126,329.79/x
  3. Step 3: Cross multiply
    206,855.94x = 285,492.07 × 126,329.79
  4. Step 4: Simplify right side
    206,855.94x = 36,066,151,506.48
  5. Step 5: Solve for x
    x = 36,066,151,506.48/206,855.94
  6. Step 6: Final answer
    x = 174,353.96

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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.