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Finding the Fourth Proportional to 322,619.60, 483,864.60 and 154,139.60

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Solution

The fourth proportional to 322,619.60, 483,864.60 and 154,139.60 is: 231,178.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,619.60 : 483,864.60 = 154,139.60 : x
  2. Step 2: Convert to fraction form
    322,619.60/483,864.60 = 154,139.60/x
  3. Step 3: Cross multiply
    322,619.60x = 483,864.60 × 154,139.60
  4. Step 4: Simplify right side
    322,619.60x = 74,582,695,898.16
  5. Step 5: Solve for x
    x = 74,582,695,898.16/322,619.60
  6. Step 6: Final answer
    x = 231,178.44

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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.