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Finding the Fourth Proportional to 321,757.60, 482,490.60 and 122,011.60

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Solution

The fourth proportional to 321,757.60, 482,490.60 and 122,011.60 is: 182,962.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,757.60 : 482,490.60 = 122,011.60 : x
  2. Step 2: Convert to fraction form
    321,757.60/482,490.60 = 122,011.60/x
  3. Step 3: Cross multiply
    321,757.60x = 482,490.60 × 122,011.60
  4. Step 4: Simplify right side
    321,757.60x = 58,869,450,090.96
  5. Step 5: Solve for x
    x = 58,869,450,090.96/321,757.60
  6. Step 6: Final answer
    x = 182,962.11

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.