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Finding the Fourth Proportional to 315,600.72, 435,531.96 and 179,628

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Solution

The fourth proportional to 315,600.72, 435,531.96 and 179,628 is: 247,888.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,600.72 : 435,531.96 = 179,628 : x
  2. Step 2: Convert to fraction form
    315,600.72/435,531.96 = 179,628/x
  3. Step 3: Cross multiply
    315,600.72x = 435,531.96 × 179,628
  4. Step 4: Simplify right side
    315,600.72x = 78,233,734,910.88
  5. Step 5: Solve for x
    x = 78,233,734,910.88/315,600.72
  6. Step 6: Final answer
    x = 247,888.33

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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.