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Finding the Fourth Proportional to 323,889.82, 446,736.60 and 280,792.30

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Solution

The fourth proportional to 323,889.82, 446,736.60 and 280,792.30 is: 387,292.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,889.82 : 446,736.60 = 280,792.30 : x
  2. Step 2: Convert to fraction form
    323,889.82/446,736.60 = 280,792.30/x
  3. Step 3: Cross multiply
    323,889.82x = 446,736.60 × 280,792.30
  4. Step 4: Simplify right side
    323,889.82x = 125,440,197,408.18
  5. Step 5: Solve for x
    x = 125,440,197,408.18/323,889.82
  6. Step 6: Final answer
    x = 387,292.81

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1.5x scale

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.