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Finding the Fourth Proportional to 351,495.36, 485,102.88 and 200,617.92

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Solution

The fourth proportional to 351,495.36, 485,102.88 and 200,617.92 is: 276,875.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,495.36 : 485,102.88 = 200,617.92 : x
  2. Step 2: Convert to fraction form
    351,495.36/485,102.88 = 200,617.92/x
  3. Step 3: Cross multiply
    351,495.36x = 485,102.88 × 200,617.92
  4. Step 4: Simplify right side
    351,495.36x = 97,320,330,771.61
  5. Step 5: Solve for x
    x = 97,320,330,771.61/351,495.36
  6. Step 6: Final answer
    x = 276,875.15

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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.