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Finding the Fourth Proportional to 545,251.80, 818,007.30 and 229,546.20

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Solution

The fourth proportional to 545,251.80, 818,007.30 and 229,546.20 is: 344,373.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,251.80 : 818,007.30 = 229,546.20 : x
  2. Step 2: Convert to fraction form
    545,251.80/818,007.30 = 229,546.20/x
  3. Step 3: Cross multiply
    545,251.80x = 818,007.30 × 229,546.20
  4. Step 4: Simplify right side
    545,251.80x = 187,770,467,287.26
  5. Step 5: Solve for x
    x = 187,770,467,287.26/545,251.80
  6. Step 6: Final answer
    x = 344,373.86

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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.