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Finding the Fourth Proportional to 475,861.73, 656,713.24 and 261,021.78

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Solution

The fourth proportional to 475,861.73, 656,713.24 and 261,021.78 is: 360,223.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,861.73 : 656,713.24 = 261,021.78 : x
  2. Step 2: Convert to fraction form
    475,861.73/656,713.24 = 261,021.78/x
  3. Step 3: Cross multiply
    475,861.73x = 656,713.24 × 261,021.78
  4. Step 4: Simplify right side
    475,861.73x = 171,416,458,201.81
  5. Step 5: Solve for x
    x = 171,416,458,201.81/475,861.73
  6. Step 6: Final answer
    x = 360,223.25

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.