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Finding the Fourth Proportional to 376,379.82, 564,236.96 and 288,027.72

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Solution

The fourth proportional to 376,379.82, 564,236.96 and 288,027.72 is: 431,786.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,379.82 : 564,236.96 = 288,027.72 : x
  2. Step 2: Convert to fraction form
    376,379.82/564,236.96 = 288,027.72/x
  3. Step 3: Cross multiply
    376,379.82x = 564,236.96 × 288,027.72
  4. Step 4: Simplify right side
    376,379.82x = 162,515,883,688.39
  5. Step 5: Solve for x
    x = 162,515,883,688.39/376,379.82
  6. Step 6: Final answer
    x = 431,786.92

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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.