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Finding the Fourth Proportional to 325,847.61, 488,768.38 and 89,189.91

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Solution

The fourth proportional to 325,847.61, 488,768.38 and 89,189.91 is: 133,784.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,847.61 : 488,768.38 = 89,189.91 : x
  2. Step 2: Convert to fraction form
    325,847.61/488,768.38 = 89,189.91/x
  3. Step 3: Cross multiply
    325,847.61x = 488,768.38 × 89,189.91
  4. Step 4: Simplify right side
    325,847.61x = 43,593,207,600.07
  5. Step 5: Solve for x
    x = 43,593,207,600.07/325,847.61
  6. Step 6: Final answer
    x = 133,784.03

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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.