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Finding the Fourth Proportional to 325,422.72, 488,021.58 and 154,624.68

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Solution

The fourth proportional to 325,422.72, 488,021.58 and 154,624.68 is: 231,883.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,422.72 : 488,021.58 = 154,624.68 : x
  2. Step 2: Convert to fraction form
    325,422.72/488,021.58 = 154,624.68/x
  3. Step 3: Cross multiply
    325,422.72x = 488,021.58 × 154,624.68
  4. Step 4: Simplify right side
    325,422.72x = 75,460,180,640.59
  5. Step 5: Solve for x
    x = 75,460,180,640.59/325,422.72
  6. Step 6: Final answer
    x = 231,883.57

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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.