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Finding the Fourth Proportional to 322,674.87, 484,001.37 and 122,988

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Solution

The fourth proportional to 322,674.87, 484,001.37 and 122,988 is: 184,477.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,674.87 : 484,001.37 = 122,988 : x
  2. Step 2: Convert to fraction form
    322,674.87/484,001.37 = 122,988/x
  3. Step 3: Cross multiply
    322,674.87x = 484,001.37 × 122,988
  4. Step 4: Simplify right side
    322,674.87x = 59,526,360,493.56
  5. Step 5: Solve for x
    x = 59,526,360,493.56/322,674.87
  6. Step 6: Final answer
    x = 184,477.83

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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.