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Finding the Fourth Proportional to 325,383.77, 449,886.42 and 284,981.68

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Solution

The fourth proportional to 325,383.77, 449,886.42 and 284,981.68 is: 394,025.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,383.77 : 449,886.42 = 284,981.68 : x
  2. Step 2: Convert to fraction form
    325,383.77/449,886.42 = 284,981.68/x
  3. Step 3: Cross multiply
    325,383.77x = 449,886.42 × 284,981.68
  4. Step 4: Simplify right side
    325,383.77x = 128,209,387,780.79
  5. Step 5: Solve for x
    x = 128,209,387,780.79/325,383.77
  6. Step 6: Final answer
    x = 394,025.15

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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.