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Finding the Fourth Proportional to 503,368.72, 755,183.78 and 187,828

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Solution

The fourth proportional to 503,368.72, 755,183.78 and 187,828 is: 281,790.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,368.72 : 755,183.78 = 187,828 : x
  2. Step 2: Convert to fraction form
    503,368.72/755,183.78 = 187,828/x
  3. Step 3: Cross multiply
    503,368.72x = 755,183.78 × 187,828
  4. Step 4: Simplify right side
    503,368.72x = 141,844,659,029.84
  5. Step 5: Solve for x
    x = 141,844,659,029.84/503,368.72
  6. Step 6: Final answer
    x = 281,790.77

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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.