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Finding the Fourth Proportional to 547,059.09, 820,027.30 and 210,008.98

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Solution

The fourth proportional to 547,059.09, 820,027.30 and 210,008.98 is: 314,797.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,059.09 : 820,027.30 = 210,008.98 : x
  2. Step 2: Convert to fraction form
    547,059.09/820,027.30 = 210,008.98/x
  3. Step 3: Cross multiply
    547,059.09x = 820,027.30 × 210,008.98
  4. Step 4: Simplify right side
    547,059.09x = 172,213,096,845.15
  5. Step 5: Solve for x
    x = 172,213,096,845.15/547,059.09
  6. Step 6: Final answer
    x = 314,797.98

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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.