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Finding the Fourth Proportional to 501,288.73, 691,778.63 and 271,845.95

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Solution

The fourth proportional to 501,288.73, 691,778.63 and 271,845.95 is: 375,147.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,288.73 : 691,778.63 = 271,845.95 : x
  2. Step 2: Convert to fraction form
    501,288.73/691,778.63 = 271,845.95/x
  3. Step 3: Cross multiply
    501,288.73x = 691,778.63 × 271,845.95
  4. Step 4: Simplify right side
    501,288.73x = 188,057,216,499.26
  5. Step 5: Solve for x
    x = 188,057,216,499.26/501,288.73
  6. Step 6: Final answer
    x = 375,147.50

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Why These Related Problems?

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