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Finding the Fourth Proportional to 284,992.62, 427,292.09 and 124,991.70

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Solution

The fourth proportional to 284,992.62, 427,292.09 and 124,991.70 is: 187,401.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,992.62 : 427,292.09 = 124,991.70 : x
  2. Step 2: Convert to fraction form
    284,992.62/427,292.09 = 124,991.70/x
  3. Step 3: Cross multiply
    284,992.62x = 427,292.09 × 124,991.70
  4. Step 4: Simplify right side
    284,992.62x = 53,407,964,725.65
  5. Step 5: Solve for x
    x = 53,407,964,725.65/284,992.62
  6. Step 6: Final answer
    x = 187,401.22

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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.