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Finding the Fourth Proportional to 246,078.80, 369,118.20 and 133,812.80

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Solution

The fourth proportional to 246,078.80, 369,118.20 and 133,812.80 is: 200,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,078.80 : 369,118.20 = 133,812.80 : x
  2. Step 2: Convert to fraction form
    246,078.80/369,118.20 = 133,812.80/x
  3. Step 3: Cross multiply
    246,078.80x = 369,118.20 × 133,812.80
  4. Step 4: Simplify right side
    246,078.80x = 49,392,739,872.96
  5. Step 5: Solve for x
    x = 49,392,739,872.96/246,078.80
  6. Step 6: Final answer
    x = 200,719.20

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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.