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Finding the Fourth Proportional to 469,892.82, 648,435.60 and 255,028.56

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Solution

The fourth proportional to 469,892.82, 648,435.60 and 255,028.56 is: 351,930.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,892.82 : 648,435.60 = 255,028.56 : x
  2. Step 2: Convert to fraction form
    469,892.82/648,435.60 = 255,028.56/x
  3. Step 3: Cross multiply
    469,892.82x = 648,435.60 × 255,028.56
  4. Step 4: Simplify right side
    469,892.82x = 165,369,597,320.74
  5. Step 5: Solve for x
    x = 165,369,597,320.74/469,892.82
  6. Step 6: Final answer
    x = 351,930.46

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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.