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Finding the Fourth Proportional to 322,905.60, 484,358.40 and 165,441.60

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Solution

The fourth proportional to 322,905.60, 484,358.40 and 165,441.60 is: 248,162.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,905.60 : 484,358.40 = 165,441.60 : x
  2. Step 2: Convert to fraction form
    322,905.60/484,358.40 = 165,441.60/x
  3. Step 3: Cross multiply
    322,905.60x = 484,358.40 × 165,441.60
  4. Step 4: Simplify right side
    322,905.60x = 80,133,028,669.44
  5. Step 5: Solve for x
    x = 80,133,028,669.44/322,905.60
  6. Step 6: Final answer
    x = 248,162.40

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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.