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Finding the Fourth Proportional to 322,664.68, 445,287.54 and 179,430.76

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Solution

The fourth proportional to 322,664.68, 445,287.54 and 179,430.76 is: 247,620.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,664.68 : 445,287.54 = 179,430.76 : x
  2. Step 2: Convert to fraction form
    322,664.68/445,287.54 = 179,430.76/x
  3. Step 3: Cross multiply
    322,664.68x = 445,287.54 × 179,430.76
  4. Step 4: Simplify right side
    322,664.68x = 79,898,281,720.73
  5. Step 5: Solve for x
    x = 79,898,281,720.73/322,664.68
  6. Step 6: Final answer
    x = 247,620.17

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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.