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Finding the Fourth Proportional to 503,939.11, 755,533.45 and 219,575.80

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Solution

The fourth proportional to 503,939.11, 755,533.45 and 219,575.80 is: 329,200.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,939.11 : 755,533.45 = 219,575.80 : x
  2. Step 2: Convert to fraction form
    503,939.11/755,533.45 = 219,575.80/x
  3. Step 3: Cross multiply
    503,939.11x = 755,533.45 × 219,575.80
  4. Step 4: Simplify right side
    503,939.11x = 165,896,861,710.51
  5. Step 5: Solve for x
    x = 165,896,861,710.51/503,939.11
  6. Step 6: Final answer
    x = 329,200.21

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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.