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Finding the Fourth Proportional to 547,181.60, 820,811.61 and 210,222.27

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Solution

The fourth proportional to 547,181.60, 820,811.61 and 210,222.27 is: 315,348.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,181.60 : 820,811.61 = 210,222.27 : x
  2. Step 2: Convert to fraction form
    547,181.60/820,811.61 = 210,222.27/x
  3. Step 3: Cross multiply
    547,181.60x = 820,811.61 × 210,222.27
  4. Step 4: Simplify right side
    547,181.60x = 172,552,879,896.56
  5. Step 5: Solve for x
    x = 172,552,879,896.56/547,181.60
  6. Step 6: Final answer
    x = 315,348.47

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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.